S6ng di€n tu lan truydn duoc trong ciic mdi trudng vit ch6t va trong chdn kh6ng, B.. Tang dAn ten sO dong di6n, gifinguy0n diQn 6p hiQu dpng gifra hai dAu doan mach vd gifr nguydn c6c th
Trang 1TRrtoNG DAI I{OC SUPHAM HA N9r
f PHAN CHUNG CHO fAr CA cAc THi SINH (40 cdu, rir cau I d6n cdu 40.)CAu 1 MQt chdt di6m dao dQng diOu hoi voi bi€n dQ 8 cm, cft m6l pnnt ch6t di6m thuc hi€nduoc 40 dao d6ng todn phAn T6c d0 cgc dai cria ch6t di€m In
ciring con con ldc thri hai thg'c hi€n duoc 60 dao cldng Chieu dr\i diy treo cfia cdc con lac d6 ld
Ciu 5 Di6n ndng o mQt tr4m phdt di6n duoc truydn di du6i diQn rip (d'dAu Cuong dAy tdi) li 20
kV, hiQu sudt c,iu quri trinh truyAn tii diQn li H = 80% Mudrr hiQu su6t cfia qud trinh truyAn tAirlar gi6 tri 95% thi ta phai
A tlng di€n ap l€n dOn 40 kV
B tdng diQn 6p l€n d6n 80 kV
C gidm diQn rip *u5r,g cdn l0 kV
D giAm dien 6p xu6ng cdn 5 kV
Chu 6 M6t con lic Io xo dao d.Qng didu hod tr6n phuong nim ngang vdi bi€n dd 12 cm Khi
d6ng ndng cria vAt gdp 3 lAn th6 ndng crha ld xo, vdt c6 li dQ
CAru 7 Ph6t bi€u nio sau ddy dfng v6i m6y ph6t diQn xoay chidu?
A Ddng di€n cAm fng chi xudt hi€n o cuQn ddy crla phAn ri'ng, kh6ng th€ xuAt hipn o cuQn
,l
oay cua pnan cam
B TAn s6 c0a su6t diQn dQng ti lQ vdi v6i s5 vdng d6y cria phAn ring
c Bi€n d0 cfia rudt aien i9;g rar ring ti te voi Jo
'd";;it;" flian *ng :
D Co n6ng cung cdp cho m6y dugc bi6n dOi hodn todnlhdnh di€n ndng
CAu 8 Con lic iO *o iO.tln sO tang gdpdOi n€u kh6i lugnB cria quA Au .onji" bor di 6009 Kh6i
.l
luong cfia qud cdu con ldc li
TRUONG TF{PT cIilrYEN ossp FIA NgI -TI{I Tr'nJ DAr Hec LAN l-(2010) - M6n vet li - Me dE n2 I
Trang 2CAu 9 Ph6t bitiu ndo sau cl6y ld sai?
Bi€n dQ cta dao dQng t6ng hop cria hai dao dOng di€u hod cirng phuong cing tdn s5
A, phU thudc vdo {0 l€ch pha cria hai dao ddng thinh phAn.
B phU thu6c vdo tAn s6 cria hai dao d6ng thdnh phAn.
C lon nhAt khi hai dao dQng thdnh pnan cirng pha
D nhd nhdt khi hai dao dQngrhdnh-phAn nguqc pha
cdu 10 vtagh di€n Rr, !', c' c6 tAn s6 cQng huong fr Me:ch di€n Rz, Lz, Cz c6 tAn s6 cQnghucrng f2 Bi6t fz = fi tvtic nO.i ti6p hai mqch d6 vdi nhau thi tAn rO
"qng iru&"g "itum4ch sE ld LTAn s6 f li€n hd vdi f1 theo bi€u thric
CAU 11 MQt m4ch
f1o dOng LC dang phiit s6ng trung E0 mqch d6 phdt duoc sdng ngin thi phii
A mfc noi ti6p thom vdo mach mQt cug-n aayinuAn cam thfc'h hsp
B m6c nOl ti€p th€m vdo m4ch m$t di6n troihudn thich hqp
c mic noi tiep th€m vdo m4ch mQt tg dign c6 diQn dung thich hqrp.
D mfc song song th€m vio mach mdt tg diQn c6 cign dung thictr'ho p
CAa 12 Phiii bii5u nio sau d6y ln kh0ng cifing?
A Cdm fng tu do cd ba cudn dAy gAy ra tai tam stato cia d6ng co kh6ng d6ng bQ ba phac6 d6 lon khdng ddi
B Cdm fng tu do cA ba cu6n ddy gdy ra tgi tdm stato cia dQng co kh6ng d6ng bQ ba phac6 phuong khdng ddi
C Cdm ring tu do cA ba cu6n ddy g6,y ra tai tdm stato crja rJ6ng ccr klrdng d6ng b0 ba phacti huong quay d€u.
D Cdm frng tu do cd ba cu6n ddy gdy ra tai tAm stato c0a rl6ng cr.' khdng dorrg bi, ba phac6 tAn sO beng tAn s6 ddng di€n
9:y 13' Ygt d:q mggh A;B gdm hai doan mach nhd AN{ vi MB rnic rrcli ti5p rdi nhru I)can lracli
1Y g9l" di9l oq tl *d9 n6i ti6p voi tl di€n c6 diQn dung C1 Eoar mach ivll; gorn rjion rro & rnic ntSi
ti6p vdi tu dign c6 di€n dung C2 Khi ddt vdo hai dAu A,B mQt diQn 6p xoay chi€i c6 git6,rrihie; a!,ng U
lltt'il :p-lie"-9u1s-gifra hai dAu do4n mach AM Id Uy, con diQn 6phiQu isng gifta ['ai d6u dosn mach
MB Ia U2 Ndu U: Ur + U2 thi he thric li€n h6 nio sau d6y ld dfing?
Cdu 14 Mach di€n g6m di€n trcr R mic nol titip vdi tu di€n c6 di€n dupg 6' =!-.1r) EAt vdo hai
6n9::o^ou: mac! mrgt hiQu diQn th6 xoay chi€u c6 tAn s6 f = 50 Hzvit hidu di6n tnZ nieu dyng U :200
V De c6ng sudt ti€u thg di€n crja doan mach ld P :200 W thi gid rri crja di€n rrd R li
9i" ll_ D6 giam.c61g su61 hao phi tren mQt duong dhy tei didn xu5ng b6n lAn mi kh6ng thay
dOr cong sudt truy€n di, ta cAn ,ip gUng biQn phrlp ndo n€u sau dAy?
A tdng di€n 6p gifra hai dau d6y t4i rr4m ph6t di€n r6n b6n lan
B' tdng diQn 6p gifra hai dAu ddy tai tram phrrt di€n r€n hai ran.
C giAm dulng kinh ti€t diQn riay di bdn idn
D gidm diQn trd dui'ng dAy cii hai lAn.
CAu 16 Con l6c ld xo nim ngung dao d6ng diAu hod vdi bi€n dd A= 8cm, chu ki T: 0,5s, kh6ilugng cria vat Id m = 400 g (5y n2=r0) EOng ndng cuc dai cria v{t Id
4.0,12041 8"0,240gJ c.2,4091 D 1,204]J.
?
TRTIONG THPT CHL,IY'€N OMSP }IA NQI -TIJI TF{LT f}AI HQC I.AN I -1zoI O) - M6n Vat Ii Ma de I72
Trang 3Ciu 17 Chon ph6r bi6u d[ng?
A Trong dao ddng cudng bftc thi tAn s6 dao dQng bing tAn s6 dao dQng riOng.
B Trong doi sdng vd kithudt, dao <i6ng tat dAn ludn ludn c6 hai
C Trong doi sdng vd ki thudt, dao ddng cQng huong ludn lu6n c6 toi
D Trong dao d6ng cudng bric thi tAn s6 dao dQng li tAn s6 cta ngoai lqrc vi biOn clQ dao dQng phg thudc vdo su quan hQ gifta tin s6 cua ngoai luc vd tAn sd ri€ng iia con lic.
Cnu 18 MQt con llc ld xo dao d6ng di6u.hoi theo phuong thing d,?ng, trung binh cri mdi phritvdt thuc hi6n duoc 240 dao ddng toin phAn Trong quri trinh dao dQng, ld xo c6 ctrieu aai nhbnndt ta 50 cm, chi6u ddi lon nhdt ld 60 cm Chon g6c toa dd d vi tri cdn bing; chiAu duorg criatruc toa d6 hudng xuiing dudi, g6c thui gian lA hic ld xo c6 chi€u ddi nh6 nti6t phucrng trint uentdc cia v6t li
A su lan truydn dao d6ng cta vAt chdt theo thdi gian
- B nhfrng dao dQng co hoc lan truy6n trong mdt m6i truong vAt ch6t theo rhdi gian.
C su lan tod r,6t chdt trong kh6ng gian,
D su lan truydn biOn dQ dao ddng cria c6c ph6n tu vat chdnheo thdi gian
Ciu 20 Bu'tic s6ng i ld
A qu5ng duong song truydn duoc trong m6t chu kj'dao d6ng cfia s6ng
B khodng c6ch giira hai di€m tr€n phuong truydn s6ng lu6n dao dong cirng pha voi nhau
C ld quing duong s6ng truydn duoc trong mdt dcn vi thdi gian ;
D khoing cdcli gifa hai rJi0m tr0n phuong truydn s6ng gAn rrhau nhdt ludn c6 citng li rl$r,o'i rritau.
Ciu ?1 Trong nr0t thi ngh.igm vd giao thoa s6ng trdn mit nrL6c, hai rrguo:i k6t hrrp A, B daod6:rg cung pha, ct)nq tin sd f : 32 LIz.1ai rn0t didnr Nf trin mit nudc ciich c6c ngu6n A, B
nl,ing klroing dy :28 cm, d2 = 23,5c1n, s<ing co bidn d0 cuc dai Gin'a M vii ciu'ong trung t4rc AB
co i',ai diy cuc dai khiic Van toc truydn s6ng tr6n mdt nrrdc lA
Cfr''s 22 Mdt con l6c ld xo gdm io xo c6 dd cring k : 200 N/m vd v6t c6 kh5i lucrng m : 200 g.
con lic clao ddng didu hod vdi bi0n dd 4 cm f6qg qudng dudng vat di cluoc trong 1-@ , 6;u
25ti€n ld
Ciu 23 Ph6t bi6u ndo sau cldy khdng dfrng?
Cia tdc cila nr6t vqt dao d6ng di€u hoi
A ludn hudng vd vi trf c6n bing
B c6 dQ ldn ti l€ vdi dQ ldn li d0 cria vAt.
C lu6n nguoc pha vdi li d6 c0a vdt
D c6 gi6 tri nh6 nhdt khi vir dOi chiAu chuydn d6ng
Ciu 24 Cudng dQ t&c thtvi cfra ddng diQn trong mOt mach dao d6ng ld i : 0,05 sin 2000t (A) TU
rIi€n trong mach c6 di€n dung C = 2 pF Ndng lugng cia m4ch dao d6ng ld
A 0,7g.19"J B 1,56.10rJ c.0,7g.10-3J D 1,56.104J,
Cdu 25 M6t ngu0n 6m ld ngu6n di6nr ph6t dm ding hudng trong khdng gian Gi6 sti khdng c6 suhAp thg vd phdn xa 6m T4i mQt di6m cdch ngudn 6m lm thi mric cudng dQ 6nr ld iCC dB Taidi€m c6ch ngudn 6m 10 m thi mric cudng d0 6m ld
TRLTONG TFIPT CHtrYsN pllsp riA NQI -THI TI{tt DAI HgC LAN I -(2010) - M6n Vat li - Me da nz
Trang 4Cdu26 Cho hai dao ddng di€u hda cDngphuoxg, cuirg rin s'i'xr: sin2t (cm) vi x2:2,4cos?t
(cm) Bi€n dd cria dao ddng t6ng hqp ld
A I,84 cm B 2,60 cnr C 3,40 cm D.6,76 cm
Cdu 27 Cric tinh chdt sau, cdi ndo khdng phAi tinh chAt crla s6ng di€n tir?
A S6ng di€n tu lan truydn duoc trong ciic mdi trudng vit ch6t va trong chdn kh6ng,
B V{n t6c truyAn s6ng diQn tu phq thuQc vdo m6i trudng truyAn
C S6ng diQn tir tudn theo c6c dinh lu4t phdn xa vd khric x4 nhu 6nh s6ng tgi m4t ngdn c6ch
gifr'a c5c m6itrudng
D S6ng diQn tu kh6ng b! mdi trulng truyi:n s6ng hdp thr;
Cdu 28 Mdt ddy ddn c6 chi€u ddi L, hai dAu c6 dinh S6ng dtng trdn dAy c5 bu6c s6ng ddi nhdtle
Ciu 29 Trong do4n mach RLC ndi ti6p dang xdy ra cQng huong Tang dAn ten sO dong di6n, gifinguy0n diQn 6p hiQu dpng gifra hai dAu doan mach vd gifr nguydn c6c th6ng s5 cia rp"h, ktlt tuAn
nho sau ddy khdng dring?
A Hg sd cdng sudt cta doan m4ch gidm
B Cucrng d0 hieu dung cria dong di€n gidm,
C DiQn 6p hiQu dung gifra hai bdn tp di€n tdng
D DiQn 6p hiQu dung gifra hai diu di€n tro gidm
C6u 30 MQt con l6c lo xo dao ddng diAu hod v6i chu ki T Khi ld xo cria con lic bi cat Ucrt ai
rn6t ntia thi chu ki dao dQng di6u hoA cia con lic li
Cliu 32 Phdt bi6u ndo sau ddy ld dfng?
A Nguoi ta c6 th6 tao ra tu' truong qua,v- bing c6ch cho dong tli€n m6t chidu chay quanam ch6m di€n
B Nguoi ta c6 th6 tao ra tu trudng quay bing cfch cho dong diQn xoay chi6u chay quanam chdm di€n
C Nguoi ta c6 th6 t4o ra tu trudng quay bing c6ch cho ddng diQn xoay chi€u m6t phachay qua ba cuOn dAy cria stato cta dOng co kh0ng d6ng bQ ba pha
D Nguoi ta c6 thd tao ra tir trulng quay bing c6ch cho dong diQn xoay chidu ba pha chayqua ba cudn d6y cila stato cria ddug co kh6ng d6ng bQ bapha
Ciu 33 lv{$t
'iqiig co kh6ng d6ng bQ ba pha hoat dQng binh thuong khi hi€u diQn thti hifu dunggiira hai dAu mdi cuQn ddy 1d220 V Trong khi d6 chi c6 m6t m4ng diOn xoay chidu ba pha donrdt m6y ph6t ra t4o ra, su6t di€n dQng hi€u dung d mdi pha li! 127 V DO dQng co hoat cl6ng binhthuong thi ta phAi mic theo c6ch nALo sau d6y?
TRIJONG THPT cHI-iYnn onsr, rm NOI -THI 'f'Ilu EAI r{oc LAN l-(2010) - IvI6n yst ti - tv{6 dd 172
Trang 5A' Ba cudn dAy cria mily ph6t theo hinh tam giitc, ba cuOn ddy cria d6ng cs theo hinh sao.
B' Ba cu6n ddy cta miy ph6t theo hinh tam gi6c, ba cu6n d6y cia d6ng co theo hinh tam
gi\c.
C Ba cu6n ddy cria m6y ph6t theo hinh sao,-ba cu6n d6y cria ddng co theo hinh sao.
D Ba cuOn ddy cria miiy ph6t theo hinh sao, Ub'ci,O.'n ddy cpa dQng co theo hinh ram gi6c.CAu 34 MOt diOn tro thuAn R mic vdo mach di6n xoay chiAu tin sO SO Hz Mu6n a;ng aia"trong mach s6m pha hon di€n dp gita hai dAu doqn rngch m6t goc xi2
A nguoi ta phai mic thdm vio mach m6t tu didn nOi tii5p voi di€n tro
B nguoi ta phAi mic thdm vdo mach mdt cu6n cdm thuAn nOi tit5p vdi di6n tro.
C ngudi ta phAi thay cli€n trd n6i trOn bing m6t tu di€n
D nguoi ta phai thay cli6n trd n6i tr6n bing m6t cu6n cam thuan
ciu 35 s6ng diQn tu ndo sau ddy c6 khd n6ng xuy6n qua tAng dipn li?
A' s6ng ddi B s6ng trung c Sdng ng6n D S6ng cyc ngin.CAu 36' Khi m6c lAn lugt m6t di6n tro thudn, mgt tr4 di6n vd mdt cu6n day thuAn cdm vdo mdtdi6n dp.xoav^.|i.-r_!.6,di?: df
,lie: dule u vd t6n 16 0 ini cu-sg ao aone oien hi{u aolg Juy
trong c;ic ph6n tir d6 c6 giri tr! lAn luqt ld 5.A; 1,25A vd 2,5A.Niiu Oat vdo do4n ma"t g6m aiqntrd thuAn, tu di€n vd cuQn ddy d6 mac'n6i tiiip'diin d ";C;;d" G;;" rht ii"* iiq" chay trongnrach c6 gid tri hi€u dyng ld
Cirr 37 l'r"ong ntdt mach dao dQng gdm cudn ddy thuAn cdm L vi tu dicln C cd dao d6ng clidn tu
tir do, ning lu'cr ng di0n truong cdra tu cliQn bi6n thi€n di€u hoa v6i tAn s6
tAu ch4y voi ttic dd
Cf,u 40 Xung quanh vdt ndo duoi dAy c6 di€n tt rruons?
A Mgt b6ng ddn d6y't6c dang siing do mic violai cuc c0a ac quy
B MQt nam chdm thang
C MQt d6y d6n c6 ddng diQn mQt chi6u chay qua
D MQt ddn 6ng hic bit dAu bAt.
U PHAN NrBXC
A Theo chuong trinh chudn ( l0 c6u, til cau 4l d6n c6u 50)
Cdu 41 S6ns lan truy€n tir ngudn O dgc theo rnQt ducrng rhing v6i bi€n aO U.,Ong ddi O thdidi6m t = 0 , dl6m o ai qua vi7J.a" uairt
ln* chi€u (+) Mgt di€m crich ngu6n mQt khodng bing
l/4 buoc s6ng c6 li dQ 5(cm) d thdi di6; bing u2 chu'k! nien dQ cria s6"ng le
A lO(cm) g s l6(cm) C.5 J7(cm) D.5(cm)
TRUoNG THPT CHUYTN pssp HA NoI -THI THIJ DAr Hoc LAN
l -(201 0) - M6n ver li - Ma dd n2 5
Trang 6Cdu 42 MQt sgi d6y ddn hdi dAi 60 cm, rung vdi tAn s6 50 Hz Tr€n d6y tao thdnh s6ng dtmg 6nd!nh vdi 4 bung s6ng, hai dAu lA 2 nfit s6ng V3n t6c s6ng trdn ddy ln
A.v:l5m/s. B v: 60 cm/s C v: 75 cm/s D.v:12mls.
Cdu 43 Con ldc don c6 d6y treo dai 62,5 cm, dao dQng vdi bi€n dQ g6c 0,1 rad tai noi c5 giat6croi tg do g: l0 m/s2 Van t6c cria quA cAu con lic khi di qua vitri cai bdng Id
A + 0,20 m/s B + 0,25 m/s C + 0,40 m/s D + 0,50 m/s
Ciu 44 Mach dao dOng gdm cuQn dAy c6 d6 tu cdm L: 1,2.10-o H ue mQt tu di€n c6 diQn dung
C : 3nF Di6n tro cria cuQn dAy ld R : 2 O EC duy tri dao d0ng diQn tt trong mach vdi hi6u diqn
th6 cuc dqi Uo:6V tr€n tg diQn thiphdi cung c6p cio mgch mQic6ng sudt
A 0,9 mW B 1,8 mW
Cdu 45 Mach dao d6ng LC g6m cu6n cdm L :
:r2= I 0) TAn sd dao ddng cia mach li
A.f:2,5H2. B f : 2,5MHz C f :l Hz. D f :l MHz
CAu 46 O6i vOl mOt doan mach xoay chiAu R,L,C mic n6i titip, bi€t ring diQn trd thuAn R I 0,
cdm khdng lrt 0, dung krh6ng Z,* A, ph6t bi6u-ndo sau dAy dirng?
A Tdng trd cria doan'mach lu6n bing t6ngZ: R + Zy +Zs'
B TOng tro c0a doan mach kh6ng th6 nhd hon cdm V,hingZy
C TOng trd cria doan mach kh6ng thO nho horr dung l<hitngZs
D Tdng trd cria doan mach khdng thti nho hcrn diQn tro thuAn R
Ciu 47; Nguoi ta dua mQt ddng hd quA l6c tri Tr6i DAt l6n Mat Trdng md khOng dieu chinh l4i.Cho bitSt gia t6c roi tu do tr€n M{t tiang bing U6 gia tdc roi ts do d6n Trdi D{t fheo dOng ii
ndy (trOn M4t Trdng) rhi thdi gian Tr6i Odt tg quay m6r vong ld
Ciu 49 Trong mach dao dQng diQn tu lf tuong c6 dao dQng di0n tu cli€u hoa vdi tin s6 g6cot=5.106radls Khi di6ntichrr?cthdi ctatudiQnld q=Jj.l0-8Cthi cuongdQddngdi6ntr?c
thdi trong mach i = 0,05 A Di6n tfch lon nh6t cria tq di6n c6 gi6 tr!
A.3,2.10-8 c i :,0.10-8 c ' c.2,0.10:E c.'
C0u 50 VAt dao dQng didu hod vdi biOn d0 A: 5 cm, tAn sO f : 4 Hz.
thi v6n t6c cira nO cO aO l6n li
!, T,heo chu'crng trinh Ndng cao ( l0 cdu, trl c6u 5r d6n c6u 60)
Cdu 51 JvIQt vat rin quay quanh *dt tru" co alnh c6 momen qu6n tinh cttai1taoi vOi truc quaykhdng a6i N6u t6ng momen lyc t6c dung,l6n vat bing kh6ng thi
A mom.en dQng luqng cria vAt thay d5i.
B gju t6c g6c c0a vAt thay d6i
C t6c dQ g6c c0a vdt khdng ddi
D dQng ndng quay cria v6t thay d6i
Ciu 52 M4ch di€n R,L, C m8c nOi,ti6p HiQu diQn th6 xoay chidu d4t vAo irai dAu macii c6 giri tri
hiQu d9ng U Khi thay ddi C thi thdy hiQu diQn th6 hieu dsng gifra hai bAn tu di€n dat gi1tii cgcdai Uc'u* = ZIJ Mtii quan hQ gifra cim kh6ng Zy citacuQn de"yithuAn cAmj t; ;ier trd R ld
B.Zr:2R.
6TRUONG TI.IPT Cr{UYPN NUSP HA NIPI -THI T[{Lr D4\I HOC I-AW I-IZOTO) M6N VAt If - ME dO I?2
Trang 7cdu 53' cho hai dao ddng di6u hda cung phuong, cing tAn s6 c6 phuorg trinh lAn luot ld
ri =6cos(l ot*flcm vd Xz=Azcos(l0r -(1 Dao d6ng t6ng hqp cia hai dao d6ng tr€n c6
bi6n dd 4 cm Bidn d0 Az c0a dao d6ng tlrdnh phAn thri hai lA
A 2 cm hoic l0 cm
B 4 cm ho6c g cm
C 9 cm hodc 6 cm
D 3 cm hoEc 5 cm
ciu 54' Haiqud cAu dEc lam bang cirng mdt loqi thdp,.!6ng.chdt, c6 brin kinh gdp 2 lAn nhau: Rnr 2Rs.
HQ thirc li6n A ia = hQ gi*a 4Ie momen qurin B tinh Ia: cria c:ic 8Is qua cAu ddi C v;i Ia: 16Is ffyc quay di qua tdm D crja Ia = mdi 32 qud Ig. ldCiu 55' MQt v{t rin quay quanh truc c6 dinh theo phuong trinh p
= 30 + 50t - tz; trong d6 g ti'h
theo rad; A cdn 655 t tfnh rad bing s cog 8.62i vf! quay dugc kc rad tir thoi C 640 iie* rad uun dAu cho d6n khi nd dung lgi D li
1630 rad
cau 56 MQt vdt r6n c6 m6^
1_en qurin tfnh ooi voi .qr rru quuy ,6 oi"n ral,s igm2, quay cr€u ,
trong mdr phrit quay duoc 300 vdng D6ng ndng quay ctla vat Ie
A.740 J B 1480 J c.370 J D 67500 J.
Ciu 57' Titing coi cria mQt 6 td c6 tAn so
t ooo gr O-t'o iit.cn duong v6i t6c d6 20 m/s T6c dd
dm thanh tronu kirdng khi ra 340 m/s Tan sri ,,:u tiene
"Jirna *0, nguoi dring 6.;;#;;; "
nghe rhdl' (r<rrio td di"; l;;
"ri i.l"ia'
A 1062,5 Hz B 94,4,4 H2 C.l.O5g,g Hz D g4l.Z Hz
,l.,l},ii,lJfL:|| ffii'r'u ddv ld kh6ng drrng khi "6i 't;; men d6ng ru.ng ,,, uai.T,, q,,o-u
A Dcrn vi do rnomen d6ng luong Ii kg.m2ls
B' Mor'en d6ng ruo:rg cui vdt rin ti lQ-vdi van t6c goc cria nti
.on ,.',.n"t#|o:T.- cdc vecto"ltrc tdc dlrng-ii;;;;r;;;'bil;kr,6ng rhi mo,'ren rl,iira ruorg
cua
'it
D lvlomen dQng lugng lu6n cirng ddu vcii r,,iin t6c s6c.
cdu 59' IvI6t con I6c do'n vdi hon ui cJrtltii lugng nr, aiolong dieu ht\a vdi bi€n d6 g6caor4i
rtoi c6 gia tdc roi tu do g Ltrc cing ddy N cria con lic tlsn o vi tri c6 g6c l€ch cL'c ,jei Ia
A N = mgsin ao B N = mgcos ao .
C N :2rngsin ao D N: mg(l_ 3cos ao).
C:iu 60 lr4dt vdt rdn quay quanh m6t truc theo phuong trinh:
e=30-&-AJt2
'lt'ortgd6toadog6cacuavdttfnhtheoradian(racJ),cdnthoi
gianttinhtheogili-r,(s)
I)hlt bieu ndo sau diy kh6ng dfng?
A VAt qruy.ha.n din;€u:
! 19" 40 e6c cria vat Id hdm s6 U6c nhdt crja thoi gian
9 Clu t5c g6c cria vit khdng dOi theo thoi gian
D' Momen ,uc rirc dung I6n uat kh6ng o6i tteo iiroi gian
TRLToNG TI{PT cFltrYpu oilsp nA NQI -THI TI{JDar HQC t-AN t-izoto) - Ir{6n ver ii - \.ra de r72 , , 7
Trang 8TRU'ONG D4,I HQC SI' PHAM HA NQI
CHU f: p1di ttri sinh bit buQc phii lhm phAn chung (gdm 0 ciu )vi rlu'gc ph6p lya chqn
lim nr6t trons hai phin ri6ns (10 cdu) tuj' theo s0 tru'dng cfra bin thin NGu thi sinh nio ldm
ci hai phin ri6ng thi sE khdng tluqc chAm cfl hai phin ri€ng !
I rHAN CIIUNG CIIO rAr cA CAc rUi SINH (40 cf,u, tir cfiu 1 tl.6n ciu 4o.)
Ciu 1 MQt vAt dao dQng di€u hda v6i phuong trinh: x = Acos(at + d.A thoi di€m ban dAu t:0,
vAt di qua vi tri cdn bing theo chi6u duong Bi6t r[ng, trong khodng thoi gian l, aAu ti€n, vat di
C5u 2 MQt vit dao dQng di6u hda vdi phucmg trinh: x = Acos(Z}t + rp),trong d6 thdi gian t dugc
tinh bing gi6y Khi vdt c6 li dd 5cm thi gi6 tri vdn tdc cira no lit 2^[i m/s Bi€n dQ dao dQng cr]avat ld
C6u 3 a* iir"" aiQn gdm hai nh6nh dao cl6ng vcri tin sO t OO Hz, ch4m vdo m[t nu6c tai hai di6m
Sr, Sz KhoAlg c6ch SrSz : 10 cm V4n t6c truydn s6ng trdn m{t nudc ld l,2 mls S5 gqii s6ng cgcclai trong khoAng gifra S 1 vi Sz lir
A 8 gon s6ng B 14 ggn s6ng C 15 ggn s6ng D 17 gon s6ng
CAu 4 MQt con lic ld xo dao dQng di6u hoi tr€n phucmg nim ngang vdi bi€n d6 6 cm Khi vdt c6
li d0 3 cm thi
A th6 ndng dnn hOi cua lo xo bing dQng ndng cria vit'
B th6 neng dan hdi cua Id xo lon g5p ba ddng n[ng cua vflt'
C thC nang dan hOi ctra lo xo bing m6t nua dQng nlng cfra vAt'
'it pt'An uuiEngieng cira vdt
Ciu 5, Song,dtm[xdy ra tron sgi dAy-ddn trOi Ag: 1,6 m, voi hai dAu A,B ld hai nut s6ng' T'r€ndey thAy cOiat cab nut s6ng TAn sd cua s6ng ld 90 l-lz V4n t6c truydn s6ng trdn dAy ld
A 24 rnls B 32 rn/s C 36 m/s D' 40 m/s'
Cfiu 6 Hai con lic don c6 chidu dni ddy treo nhu nhau, cirng d{t trong mQt diqn trudng d€u c6phuong nim ngang Hon bi cua con lic thf nh6t kh6ng tfch di€n, chu ki dao dQng nhd cria n6 ld T.Hon bicua con l6c thri hai dugc tich dien, khi nim c6n bing thl ddy treo cia con lic niy t4o v6iphuong thing drmg mQt g6c bing 60o Chu ki dao dQng nh6 cta con lic thir hai ld
Trang 9CAu 8 Hai dao dong dieu hod cung phuong, cung tAn s6, c6 bi€n dQ lAn luot ld 41 : avir Ar= 2i.
Bi€n dd cira dao dQng t6ng hqp ld a : aJ1 D6 lQch pha c[ra hai dao ddng n6i tren ld
Cdu 9 Phet bieu ndo sau ddy khdng clirng khi n6i vd dao ddng dj€u hoa cua ch6t di€m?
A Bi€n d6 dao dQng cria chAt di6m Jd d4i luo,ng kh6ng d6i
B DQng ning cria ctr6t di6m bitin d6i tuAn hodn theo thoi gian
C T6c dd cira chit di€m ti I€ thuq.n vdi li dQ cira n6
D D9 lon cria hqp lgc t6c dgng vdo chAt di€m ti lQ thuin voi Ii dQ crla chdt di6m
Cflu 10 PhAt bi6u ndo sau dAy kh6ng dring?
A Bi6n d6 dao dQng cu$ng b&c php thudc vdLo quan h€ gifra tdn s6 cira ngoai luc vd tAn sdri€ng cua h€ dao dQng.
B Bi€n {0 cua dao d6ng cu6ng bf.c nhy thudc viro bi6n d0 ci.ra ngoai luc
C Tdn s6 crla dao cl6ng duy tri li tdn s6 ri6ng cfra h6 dao cl6ng.
D TAn sO cua dao dQng cudng birc ld tin sd ri6ng cria h9 dao dQng.
Ciu 11 M6t nguoi quan siit mQt chi6c phao tr€n mat bi6n th6y n6 nhd l6n cao 5 lAn trong thdi gianl2s Khodng cdch giil;aZ ngon s6ng ke nhau ld 12 met Vgn tdc truyAn si,ng tr€n mat bltin lA
Ci,u 12 MQt s6ng si€u dm(c6 tAn s6 3,3.10s Hz) truydn.trong kirdng khi vdi vAn t6c Ii 330 rnls.Bi€t t6c dd 6nh s6ng trong chAn kh6ng Id c = 3.108 n/s TAn sd cira m6t s6ng cli€n tu, c6 cing bu6cs6ng voi s6ng si€u Am n6i tr€n, c6 gi6 tri
A.3.lo5 Hz B.3.lo7 Hz
Ciu 13 Mdt ngudn dm duo, c coi nhu m6t ngu6n di6m, phiit m6t c6ng sudt 6.m thanh 1W Cuong
dQ dm chuAn Io: I0-r2 1Wtn2; N'10i truimg coi nhu kh6ng hdp thp vd phdn xa dm thanh Mr?ccuong dQ 6m tai m6t ditim c6ch ngu6n i0 m ld
CAu 14 Phdt bi6u ndo sau ddy vd s6ng co ld khdng dfng?
A S6ng co hpc ld quri trinh lan truydn dao d6ng co hoc trong mQt rndi truong vAt ch6t
B S6ng ngang Ii s6ng c6 ciic phAn tir rn6i trudng dao ddng theo phuong ngang
C S6ng doc Ii s6ng c6 cdc phAn tu m6i trudng dao ddng theo phuong trung voi phuongtruydn s6ng
D ,rlu6c s6ng ld qudng duong s6ng truydn duo c trong mOt chu kj'dao dgng cua s6ng
Ciu 15 Tren mflt nu6c c6 hai nguOn s6ng gi6ng nhau A vd B, ciich nhau khoing 12 (cm) dangdao dQng vudng g6c vcii m{t nudc t4o ra s6ng c6 budc s6ng 1,6 cm Gqi C ld di6m tr€n mpt nudc,c6ch d6u hai ngudn vd c6ch trung di6rn O cua AB m6t khoAng 8 (cm) SO aiem dao dQng ngugcpha vdi ngu6n d tr€n doan CO ld
Cffu 16 M4ch di€n xoay chidu mic nOi ti6p g6m mQt di6n tro thuAn R : 50 C), mQt tp diQn c6 ctigndung C : I {1r1vd cu6n dAy thuAn cAm c6 d9 tu carn t : )-@) D4r vdo hai dAu mach mgt
di€n 6p xoay chidu u : l00JI cosLrft (V) thi dong diQn trong mach c6 culng d6 hiQu dung I = 2
(A) Ten s6 cria ddng dign trong mach li
Trang 10Ciu 18 Mach diQn xoay chidu m6c nOi tiep g6m mQt diQn tro thuAn R: 100f), mQt tu diQn c6di6n dung C vir m6t cu6n d6y thuAn cdm c6 dQ tU cdm L :!@)' Eien 6p xoay chiAu dat vio hai
ltdAu do4n mach co bi6u thuc u: U Jlcosytft, trong d6 U: const cdn f thay d6i duqc' Khi thayd6i tdns6ftdi gi6tri fr:50Hzhoac fz=200H2 thi cubngdQdongdiQntrongmachc6cing
mQt gi6 tri hiQu dung DiQn dung C cira tq diQn ld
o tl1,o, B 9ro, c Tl,o, D 9tol
t
Ciu 19 Khi dua con l6c don l6n cao theo phuong thing J*t t b6 qua su thay AOi cua chiAu dii day;" con l6c) thi tAn.s6 dao ddng di€u hda cira n6 sE
A gidm vi gia t6c trong truong gi6m theo dO cao'
C tan! vi tAn sO ti tC lghi.ch vdi gia t6c trong truong'
-:_ 4^ r-^ +-.),
D khdng AOiriti" 15 iuo AOng Jua n6 kh6ng phu thu6c gia t5c trqng trudng' .:
Ciu 20 Trong mach nf-b -a n6i t#p, dd lech pha c;a ddng diQn so vdi diQn 6p gita hai ddudoan m4ch phu thu6c vdo
A cucrng dQ ddng diQn hiqu dpng trong m4ch'
B diqn 6p hiQu dung gifra hai ddu do4n m4ch' r
C dflc tinh criarnacf,iien vd.tdn sO ddng diQn xoay chi6u'
D cfch chon goc thdi gian d0 tinh pha ban diu'
Ciu 21 MQt m6y ph6t diQn ba pha m6c hinh sao c6 diQn 6p higu dgng pha 127, V vir tAn sO S0gz'
Nguoi ta dua dong ba pha vdo ba tai nhu nhar,nat irin1, i* gia",n,Ol iai c6 dien trd thuAn 24 A
vi,-cdm kh6ng 32 A ' C6ng suAt do c6c tAi ti€u thp ld
Cau ZZ.iniii6, nao sau dAy dirng vdi m6y ph6t di€n xoay chiAu?
A Ddng didn cdm r?'g chi xu6t hiQn'o cu6n dAy cira phin img, kh6ng th6 xu6t hien o cuqndAv cria ohAn cdm
' -
t Ta" rA c6a sudt diQn dQng ti le voi voi sd vong,ddy cira phdn
rJm.g-C Bi€n dQ cia su6t dign dQng cnm tmg ti lQ v6i s6 vong ddy cua ph6n img'
D Co nlng cung cAp cho may duqc bi6n d6i hodLn toin thinh di6n ndng
Ciu 23 Trong do4n m4ch xoay chi6u RLC n6i ti€p Gc.'i U, V*, Ur, Uc lin luot ln hiQu diQn thdhiqu dung gita hai ;il;;u; ;ach, hai <lAu diQn tro R, hai diu cu6n dAyL vd hai bin tu diQn C'PiCu
"ao tuu d6y khdng th6
x6Y ra
A un > Uc
B, U'jfi.: ur = Uc
C.Un>U.
CituZ4.ChoncAu dirng khi n6ivd dong diQn"xoay chi€u?
A C6 th€ dirng CIng diQn xoay chidu d€ ma diQn'
B Gi6 tri trun! binlicua cuoTg dQ ddng.diQn tro.ng mQt chu ki b[ng 0.
c EiQn l,rsns";|u.,j; * ii5 aie" triang cua'dly ia" co dong?ign xoav chiAu chpv quatrong mdt kironng tfiol gian UAi tcy d€u bdng kh6ng'
A.U*=60V B.U"=120V' C'U*=60 ,f2V' D'.U*=60'f3V'
Ciu26.BQ phan niro dudi dAv khong c"-Toig.t: go,qoi ctia mQt m6y phr{t vO tuv6n diQn?
A M4ch bitin diQu' B' Mqch khu€ch dai'
C Anten D Mach trich s6ng'
TRuoNG THFT cHUyEN oHsp HA Ner -Tiil iHU'DAr Hec r,Ax z-izolo) - Mdn \rai li - Ma da 231 .,- 3 ,
Trang 11Cfr.u 27,.Di6n ning o mQt tram ph:it di€n duoc truy€n di duoi diQn 6p 2 kV vd c6ng su{t 200 k;.
HiQu sd chi cua c6ng to o iram ph6t.vd c6ng to t6ng o' noi ti6u thp iau m6i ngiy d€m ch6nh l€chnhau 480 kWh Cdng sudt hao phf ti6n duolg day va hi€u su6t cria qu6 trinh truydn tai dien iA; luqt ld
bJ, iirrg kinh co dQ rQng g6c
A 0,310 B 0,210
Cfiu 30 HiQn tuqng quang di€n trong
A ld hiQn tugng electron hAp thg photon c6 ning luqng dt lon dC brn ra kh6i ttrOi ctr6t.
B hi€n luqng electron chuy6n ddng manh hcrn khi trdpltru photon.
C c6 th€ xiy ra vdi 6nh siing c6 budc s6ng U6t tg.
D xiy ra vdi ch6t b6n din khi 6nh s6ng kich thich c6 tAn sO tor"' hcm mQt tAn sd gioi h4n
Ciu 31 Trong thi nghi€m l-dng (Young) vd giao thoa 6nh s6ng, khoing crich gifra hai khe SrSz li
1,0 mm Khodng c6ch tu mdn quan srit d6n mdt phing chira hai khe S1S2 lir 2,0 m Chi€u vdo khe
S d6ng thoi hai 6nh s;ing clon sic c6 budc s6ng l, =0,41an vd \ va 0,5Apn<4<0,65pt 'lr€n min, tqi di6m M c6ch vAn trung tdm 5,6 mm c6 vAn s6ng cing mdu vcri vAn s6ng trung t6,m.
Budc s6ng )"co gi6trilir
A 0,52 trm B A,56 pm C 0.60 pr. D 0,621un
Cdu 32 Quang di€n tro duoc ch6 t4o tu
A ch6t b6n d5n vd c6 ddc di6m ld d6n di€n kdm khi kh6ng b! chi€u s6ng vd tro n€n d5ndi€n t6t khi duoc chi6u s6ng thicl hqp
B kim lo4i vi c6 ddc di€m ld diQn tro su6t cira n6 tdng khi c6 6nh sring thfch hqp chi6u vio.
C chdt bdn ddn vd c6 d[c di6m ln d5n diQn tdt khi khOng b! chi6u sdng vd tro n€n d6n diQnkdm khi duo c chi6u s6ng thich hqp
D kim lo4i vi c6 d[c di€m ln di€n tro su6t cria n6 giAm khi c6 rlnh s6ng thfch hq p chi6u
vio.
Ciu 33 Cho cic ngu6n s6ng g6m:
1 ddy t6c v6niram n6ng siing nim trong bring thiry tinh de rirt kh6ng khi d6n 6p su6t r6tthdp
2.hat natri (Na) voi itp su6t rAt thdp
3 ddn hoi thuy ngin c6 6p sudt vdi atmdtphe (ddn cao 6p) dung ldm ddn duong
Nhimg fBu6n s6ng cho quang phd vach ld
A ngu6n l B ngu6n 2 .
C ngudn I vit2 D cd ba ngu6n
Ciu 34 Trong thf nghigm giao thoa 6nh s6ng, do duoc khodng c6ch tu vdn sring thri 4 ddn vin
srirrg thri I0 C cung m6t phia eOi vcvi v6.n sfng trung tdm 'd2,4 mm Khoing crich gifra hai khe dng li lmm, khoing c6ch tir min chrla hai khe t6i min quan s6t li lm Budc s6ng 6nh sdng dsn ,
I-sdc dirng trong th( nghiQm li
TRUONG TFIPT CHUYex oHsp HA NQI -THi THLJ DAI HgC L,A-N 2-(2010) - M6n vrit li - Ma de 23 I 4
Trang 12Ciu 35 Gi6'i han quang di€n cua nrdi kim loai ld
A budc s6ng dhi nhAt cira bgc xa chi6u vdo kirn loai do md g6y ra dugc hiqn tuo.ng quangdiQn.
B budc s6ng ngin nh6t cria buc xa chi6u vdo kim loai d6 md gdy ra duoc hiOn tugng quangdiQn.
C cdng nho nh6t dnng d€ birt electron ra khoi b€ mat kim loai d6
D cdng lon nhAt dnng d€ but electron ra khoi bA mat kim Io4i d6
CAu 36 Ph6t bi6u nio sau dAy ld sai khi n6i vA tinh chAt vd tic dung cria tia Ronghen?
A f ia Ronghen c6 khd ning dAm xuydn manh
B Tia Ronghen t6c dung manh l€n kinh Anh, ldm phdt quang mQt s6 chdt
C Tia Rcrnghen bi l€ch trong di€n truong
D Tia Rcrnghen c6 t6c dqng sinh li.
Cffu 37 Ph6t bi€u nao tuu ddy vA tia h6ng ngo4i ld kh6ng ching?
A.Tia hdng ngo4i do c6c vdt nung n6ng ph6tra
B Tia hdng ngo4i ldm phrit quang.mQt s0 ch6t'
9 li aung nOi bat nh^6t cua tia hdng ngo4i ld tric dung nhiQt.
D Tia h6ng neoai c6 tdn s6 nho hon 4 lOra I Iz'
Cflu 38 Theo quan <Ji"em cua thuy€t Iuqng tfr enh sring ph6t bi6u nio sau ddy ld khdng dirng?
A Chirm 6nh s6ng ld mQt ddng hat, m6i trat ld mot ph6t6n mang ndng lugng
B Cuong dd chum s{ng ti l0 thu{n voi s0 phdtdn trong chum'
C Khi rinh sAng truydn di c6c ph0t6n 6nir s6ng c6 ning lugng kh6ng ddi, kh6ng phu thuQc
khodLng c6ch d6n ngu6n s6ng.
D C6c phdt6n c6 nlng lugng bing nhau vi ching lan truydn voi vdri toc bing nhau
^ ^rCiiu 39.Cho b1€t: hing s6 eleng h:6,625.19-'oJ.r,t6c d0 iinh s6ng trong chdn kh6ng c =3.10om/s dd lcm diQn tfch cla electron e: 1,6.10-reC C6ng tho6t electron cira mQt kim loai lii A = 3,6
cV Gioi han quang cli6n cira f.im lsai 'i5 ld
II PHAN RIENG
A Theo chuo1'g trinh ChuAn ( 10 cf,u, til'ciu 41 cl€n cf,' 50)
CAu 41 MQt con llc lo xo gdm ld xo c6 dQ cfmg 20 N/rn vd vi€n bi co khi,i luong 0.2 kg dao dQngdi6u hda Tai thoi di6m t, v4n t$c vd gia t6c cua vi€n bi lAn luqt li 20 cm/s tit 2.,[i m/s2 BiCn dO
Trang 13Ciu 44 MOt mach dao dong LC dang birc xa duoc s6ng trung D6 mach d6 bfc xa duoc s6ng
i
ngan tnr phal
A mic nOltiep th€m vdo maih m6t cu0n dAy thuin cdm thfch hqp
B mic nOi tiep thdm vdo mach mdt di€n tro thuAn thich hqp
C mic nOi tii5p thdm vdo mach mdt tu di6n c6 di6n dung thfch hqp
!
D mdc song song th€m vdo mach m6t tg diQn c6 di€n dung thich hoo
Cdu 45 Mach di€n xoay chidu gdm dign trcv thuAn R : 30 (A) mic nOi ti6p vdi cuQn dAy DEt vdohai dAu mach m6t di6n 6p xoay chidu u =U".Dcos(I00.a)(V) DiQn 6p hiQu dung o hai dAu cuQndAy li Ua : 60 V Dong di6n trong mach l€ch phu l so voi u vd l6ch phu 4 so voi u6 Cuong dd
"ung cAp cho mach mQt c6ng suAt P le
Ciu 48 Phft bidu nio sau ddy khdng dfrng?
A AT nghe dugc c6 tAn s6 nim trong khodng tu 16 Hz d6n 20 000 Hz
B VC bdn ch6t vdt li thi s6ng 6rn, sirng si€u dm vi s6ng ha im khOng c6 gi khhc nhau,ch0ng dAu lA s6ng co
C Song si€u 6m ld s6ng Am duy nhdt ma tai ngudi kh6ng nghe duoc
D S6ng im ld s6ng doc truydn trong cAc mdi :rudng vdt chdt nhu rin, long hodc khf
CAu 49 Chi€u mdt buc xa don sic c6 buoc s<ing A = 0,66pnr tii kh6ng khi vdo thuy tinh c6 chi6ti,
sudt fmg vdi buc xa d6 bhng 1,50 Trong thuy tinh bric xa d6 c6 budc s6ng
B Theo chu'o'ng trinh Ning cao ( 10 ciu, tir cAu 51 tltin ciu 60)
Ciu 51 Chgn cdu khOng dring khi n6i vd chuy6n d6ng quay cria mdt vdt rin quanh mQt trpc c5dinh? Khi v{t rin quay quanh.mQt tryc c6 dinh thi
A trgng tdm cira vdt rin ludn lu6n drmg y€n
B mgi di6m thuQc vit rin c6 cirng v4n t6c g6c
,,1
C moi cli€m thu6c vdt rdn c6 cing gia t6c g6c
D qu} d4o cta n:ql diCm thugc v[t"rin le ni;mg vdng trdn c6 tdm nim trOn truc quay
CAu 52 B6nh dd ciia mOt dQng co, tu hic khoi dQng d6n khi d4t tdc dQ g6c 100 radls, dd quayduoc g6c bing 200 rad Bitit b6nh dd quay nhanh din dAu Thoi gian tri hic Uat eau khoi dQng di5n
khi b6nh di dat t6c d0 3000 vdng/phtt la
]'RuoNG THPT CHUYeiq OgSp HA NQr -THI THU'EAr HQC LAN 2-(2010) - M6n V?t li : Me dii 231 ' ,
6
Trang 14Ciu 53 MQr v|t ,in quay nhanh dAn d0u quanh m6t truc cO ainn xuy€n qua v6t Mdt di6m tr€nvat rin khong nim tr€n trqc quaY co
,
A gia t5c ti6p tuy€n hudng.vlo t6m qu! d4o ! i r.:
B gia t6c titip tuy6n cirng chi€u voi chi€u quay cira vAt rdn d mdi thoi di€m
C dd l6n cira gia t6c ti6p tuy6n lu6n lcrn hon d9 lon cira.gia t5c hudng tdm
D gia t5c tiiip tuy6n tdng ddn, gia t6c hu6ng tim t[ng dAn.
Cfiu 54 Hai hinh tr\r d*, ddng ch6t,.c6 cung chi6u cao, dugc ldm bing cung mQt loai vdt li€u, c6
iar 6"n gap jOi nfruu
Gr'= Zri) Ti s6 morne-n qu6n tinh lOOi voi truc quay tri g voi t4rc ddi xringcua mdi hinh t4r) cta hai hinh try ndy ld
Ceu 56 C[o'-nargsORtangh:6,6i5.10-'o(Jr);t5cd0*hi*gtrongchdnklgngc=3'108(mis); khiSi
luong vd d0 lmr dign tich cta electron lan luqt ld: m : 9,1.10rr kg vi e = !,6.10'rec
Chi€u mQt chirnr s6ng don sic c6 budc s6ng ), = 0,300/mviro catot cia mdt tO bio quangdiQn Cdng tho6t electron ctia kim loai dirng lim catot ld A = 2,5 eV Vdn tdc lon nhAt cia quangelectron bin ra khoi ca tot lir
A.7,6.t O61mls; B.7,6.tO51mls;
c 4,5.1 06 irr/si D 4,5 l 05 (m/s)'
Ciu 57 MQt cuQn ddy c6 di€n trcy thuAn R, d0 tr,r c6m L, Ntiu mic cu.Qn d6y vdo hiQu diQn th€ mQt
"irt[r z+ v.,ti ,u6ng dQ dong di€n qua cuOn ddy ld 0,36 A N6u mit cugn diy vdo hieu dign thai
xoay chidu c6 hieu.dien thd hiQu dqng ld 100 V thi cuong d0 hieu dgng cria dong diQn qua cuQn
dAy c16 la 1 A I.iQ s6 c6ng suAt cia cuon dAy lfic ndy ld
"iru lg dAn h6i cria lo xo c6 gi6 tri lon nirAt ta 3 N' D0 cring cta ld
xo vd bi6n dQ dao dQng cria con l6c ld
A 75 N/m;2 cm B 75 N/m;4 cm
C 170 N/m; 2,5 cm D 100 N/m; 3 cm
Ciu 60 MQt loii doi ph6r s(rng si0u im c6 tdn s6 50 kl Iz Bi6t v4n tdc truydn 6m trong khdng khf h
336 m/s MQt con.doi A*g bay voi v1n tdc 6 nr/s S6ng si0u dm-do
16 ph6t Tl.lan x4 o mQt vit can
phfa trudc .,,d truydn ngugc l4i Con doi nAy nhin dugc s6ng si6u irn phAn xa voi tAn sd
A 52,82W12 B 50,82 kHz c: 51,82k112 D 49,82Wf2
7
T'RI.IdJNG Tr-ipT CHUYitN pgsp HA NQi :TIil THIJ EAI HOC LAN 2-(201|q - Mdn V?t li - Me de 231
Trang 151'RLr'OFi{; t).tt iioir sli I'HAnI tr tA NOl
]'RI.I'(ING ]'I II']' CIJ T]\'EN I)IISI'
[{A DIr 3tt1
(LAN 3) - rtrAuc 3 -2olo
lr0N vAr rr.1 thoi gian 9i) phut)
t] tAn sO ciao cl6n-e cira s6ng
D mdi trlrong trul'en sting
I PHAN CI{UNC CHO TAT CA CAC THi Sil.{H (40 cfiu, ti'ciu 1 c10n ciu 40)
Ciul llai conliiccltrncticilngkh6i lLlo-ngvatning,chi6uclai cl01'treollinluotli ll:[i1cmvd12
=100 cur clao cl6ng nho tai cr\ngm6t ncri voi ciurg niOt ndng lr,rong dao d6ng N6u bi€n do g6c ctracon lic thir nhat lii 6" thi biOn d0 gric ctia con ldc thfi hai ld
A 8". B 4.96'' C 5.,+0". l) 6"(r7n.
Ciiu 2 Trotrg sLr giao thoa cua son-e tr0n mirt nucrc cira hai nguon k6t hop ngtloc plta phit ra cdc
s(rng c(r 1r,r.r:yg 5cing 2 nhintg diCnt dao ctOng vo'i bi0n c10 crrc dai c6 hiSLr hhodng ciich tit clo d€n ciicngr,rdn (i'6i li = 0 + 1.+2.+3 ) co girl tri li)
('iu -1 \/lin tOc tlr.n en s6ne phu thuOc
r\ nlirrg lLLong cira s6ng
(' [.Lrri.'s1i11g.
(liu 5 I'}hirt bicLr niio sar-r d61' ld clung?
A Dao clOng tuAn hoin la clao clOng nrd vi tri cira vdt ctLxrc lip lai nhLL cfi sau nhiilg kiroingthiri girn lriurg nhau
B I)ao cl6ng tu'do ld dao dOng chi phr-r thu6c ciic cldc tinh cira h0 khOng phu thuOc cdc y€u tdb0n ngoiii,
C I)ao cl6ng c1u'oc duy tri nrd kh6ng cAn t6c clung ngoai lttc tr,rin horin dr-rcrc ggi ld tu dao
clOng.
D I)ao c10ng cuilrg birc k\ clao ddng ducrc.du-v- tri clo tlic clung cua nr6t ngoai luc bi6n dOi.Cliu (r llirl' xic clinh trang thiri liich lhich cao nhAt cira cdc ngul,en trr hiclr0 trong trLrcnig hgp ngrLr\'i tachi tiru dLro'c 6 r'ach cluang ph6 phirt xa cira nguydn tir liidr'6?
A 1'rang thdi l- B 'frang thdi M C 'frang thrii N D 'I'r'ang thdi O
Ciu 7 Phirt bi€r-r niio sau ddy ln sai khi n6i v€ qlrang cli6n trcr?
A.BQ phin quan trong cua,cluang di0n tro ld mOt l6p chdt brin d5n c6 gin hai di0n cuc
I3 Quang cii€n tro tliuc chAt ld mdt di6n tro md gi6 tri cira n6 thay d6i khi duoc chi€u s6ng.
C QLrang di€n tro c6 th6 diurg thay th6 cho cic t6 bio quang di6n
D QLrang cli€n tro'ld mQt di€n tro md giri tri cira n6 kh6ng thay d6i khi dtrcrc chi6u sdng.
Cliu 8 Dune ciich fluor€xeiu h6p thp iinh s6ng c6 btr6c s6ng 0,49 lutt vir ph6t ra 6nh sdng c6 budcs6ng 0,52 tran Ngudi ta goi hiQu suAt cira su ph6t quang li ti sd giira niurg luong ainli sdng ph6t quang
r.'a nang luorig 6rfi sirng hgn thU Bi6t hiqu suAt cua su phdt quang cira dung clich fluor6xeeinld,T5%o
Sd photon bi hdp thu d5 ddn d€n su phdt quang ld
Trang 16( irr 9 l']rrr,rrrS trirrlr rllro cl0ng tli neLrrjrr sor.rr, L) ct\ cl.rrrg: t!,, = .lc()s( -l:1 Sirrrg tluve\u trdn ciil' r'oi
'7"
bi0n clo kh0nc clLii T'ri ,-li.inr M n'en rla\ ciclrnguon 7/(r tlrr'',: sting ri thdi tlienr t : 1.5T cir li dg dao
cl6ng u : -3 cm Ilien tio scing bing
Ciu ll N{0t vit clao cl0ng di€Lr hoi r'6i ci.ur kj'T vi biin tl6,A QLriing ilrrimg vat di duo-c tdi cla
trong khoing lhoi girn -51'3 ia
4(' .r = l.Tlcps(-i7 * 411,,1r)
(lliu lJ l)eo cl0ng cti0n tu trong nrach l.C li dao dQng cliiu hor) I(hi hi0Lr cliOn thO giira hai ddu cr,r6n
clinr li\ 1.2 V thi currn-u clO dong cli"^n tlong mzrch bing 1.8 rnA Con lthi.hieLr clien thO giira hai dAu
cu0n cinr Ir\ 0.9 V thi cLrmrg dQ dong cli0n lrong rnach bing 2.4 nrA Bi0t d0 trr ciinr cira cu6n ddy L =
-5 mlI Dien clLrng cira tu diOn vi) nirng lu'o-ng cli0n tir cua mach trLo'ng frng birng
A 20 nlr vi\ 2.25.10-e J Il 200 nf vzi 2.25.10-s .T.
C 20 nl; r'i'r 2.25.10-8 .1. D.22.5 nF vz) 2.50.10 I
.1.
(liu 15 MOt cllit'da'rn liOi AB ddi 60 crl cri ddu B lo lirnL{ (t diu A mic vi\o nrOt
dOng vdi tin sO 1':50 l'12 Khi dm thoa rung, trOn dliy c6 s(ng clung r'(ri 2 bLrng scing Vdn t6c truy€nsting tr'0n dlil' k\
A 2ul nt/s B -10 nr/s C 40 nr/s D -18 nr/s
(liu 16 Dao clQng.cLr'6'ng birc lii dao c16ng
A co tin s6 thay clOi tireo tho'i gian
Il co bi€n d6 chi phtr thuoc bi6n dd cua lr.rc cu'eng birc
C c6 ning llro'ng ti 16 vcyi bi€n d6 ngo4i lqc ctr6lg b[rc
D c6 chir ki blng chu ki cfra ngoai lqc cudng bf'c
Ciiu 17 Con lic lo xo dirt nim ngarls, r'dt ndng c6 kh6i iucrng 500g dao c16ng cli€u hoa v6i chu ki T
:0.445 s Co nitng cita con lic ld 0,08 J.LAy n =3,74 Bi0n dd dao d6ng cira con ldc ld
Cjiu 18 Di6n 6p giira hai dAu mdt doan mach RLC mic nOi tiep c6 bi6u thirc a =(iJlcoscot .
Circr bi0t L id cuOn ciAy thuAn cdrn c6 cim khiing Zr, - 60 CJ; dien tr6' thr-rdn R : 60 .16 O, tu di€n Cc6 di€n dung tha1, d6i duo c Thay c16i di6n dung C tili gid tri sao cho di6n iip hi0u dung gifia hai bdn
tu dat cuc clai I(hi clir, dong diQn chal'qua mach
TRUoNG THPT CHUYET OHSp FIA NOI -THI THU',DAI HOC t.AN 3-(:010) - M6rr Vat li - Nri de 381
Trang 17,ittliriltlt l-'rltlt ; so vtii diin rip tr.
_l
so vtii ctien iip u.
so vo'i cli€n irp u.
tram clidu hdnh du6i rndt ddt,
st'' r,oi clidn lip u
fliu 19 \lOt khurrg div dfur phing r-o N vong dd\,, ciuar cl€Lr voi t6c d0 g6c co quanh tmc doi xirngcun nri trong nr0t tiL trLtcxrq c10u c(r vcc to cim irngtiL vuOng goc r'6i truc qua\, Tir tir6ng cr.rc dai quamOt vr\ng div hi 0p Gil tri hi6u dLrng cira sLrdt di6n cl6ng cinr unq tror.rs lihung day'd5n ld
D E: I{ro(to
r\ tr*
Citr 20 Dirt vio hai cldu doan mach I{ L C ,'nic nOi tiep ndt cliQn 6p xoay chie Lr v = 220J7.o, ort
(\') Iihi tlral'doi r!) c6ng su6t ti€u thu cuc clai ciracloan nracir ln 484 W i)i0n trcv thuin ciramach lir
\ 50 () B 75 () C 100 Q D 150 f).
{'iu 21.'l'r'orrs cloun nrach xoal'chiCLr girm Cli0n trcr,thuin tLr clien nOi tlC;, r'di cu6n ddy di€n dp tirc
tirrri giiiu lrai clau cli0n tro thu6n I{ i,ii gifi'a hai clnu cudn cla1,c6 circ bi0u thirc ldr-r ltrcrt ld up:
I luRgosott 1\i) r'ii u,1- 1111,1 cos(a)t - tr ) (V).K6t ludn ni\o sau clil'ld sai'?
2
A Di0n dp giira hai diLr cuOn clliv nqrlctc pha voi cli6n ip gilra hai ban cira tu cJi0n.
U CuOn div cr'r di6n trcr thuin.
C CLr0n ciil' lri thuin cdrn
l) C0ng suit tiCu thu tr€n rnach l<hirc 0.
('iu 22 \iach dao cltrng chon song cira nr0t nrdy thu g0nr nr0t cLr0n diiy'thuin ciinr v.i nrdt tu di6n c6
, ,.1 ,
tliun tiruru bicn tliri ctLlo'c tu 20 pF clcrn -500 pF Ilrrdc scins ngln nhiit cira s6ng cli0n til md m6y thr,r thu
tiLrltrc li :: ,-r'r []rLtic song OAi nil6t cua sorrg cli0n tir nri) miry thr-r thLr cluoc li'r
(liu 23 Khi nrii v€ song dien trr, phht triiLr nio sau cliil clirng?
A Sting dien tir chi lan tm1'c\n clLlo-c trong m0i trucrng clrit (rin long hay' khi)
I1 C'irng nhu st'rng 6m song cli0n tir c(r th€ ld sirng ltgang hay s6ng cloc.
(i S(rng clilrn tu'luOn ld song ngang vi lan tru1,0n clrrcrc cii trucrng chit lIn trong chirr khdng.l) 'l-Oc d0 lan truyOn cria sdng cli0n tiL ludn birng t6c d0 iinh siing trorrg chiin khdng, khOng
Ih!r thu0c gi vi\o rnOi trLrong trong clir s(rng lan trul'0n
('iiu 2J Ilirit bi0Lr ru)o sau ddy la lilrOng dirng?
.,\ i)i€rr tiL tnLoug bi€n thi0n thco thr)'i gian lan tlul'0n trong Ithdng gian clLloi dang s6ng D6 lds,ittg diclrt tiL.
ll Sirng di€n tir lan trLry6n voivin i6o rit lo'n Tlong chan l<herng, r,in tdc cl6 biurg 3.108m/s
".i Sring cliOn tir rnaus ndng lu'ong
i) Sring diOn tiL ld s6ng ngang.'l'rong qLri trinh lan trLrl'en s6ng c1i0n tLl thi cli6n truong bi6nrhiCn vii tit trr.Lo'ng bi6n thien dao clQng cirng phrrong vii ctirng vu0ng g6c vrli phuong truydn s6ng,Cliiu 25 I\401 mii' bien th6 c6 ti s6 so vong ddy cira cu6n so.cirp va thir cdp ld l : l0 86 qua hao phi onrav biCn 1h0 DLrne ntdy bi€n th€ ndy c(r th€
A tirng hie u cli€n th6 vd dong di6n l6n 10 lAn.
B gidm hi0Lr cli6n th6 vd clong clign 10 lAn.
C tang hiQu cliQn tir6 10 lAn vz'r gidm cr-rdng dQ dong diqn 10 lAn.
D giim hi€Lr di€n fie l0 lAn va ting cudrrg d0 clong di€n 10 lAn.
0.-iv?.\rr,.t/r
ll/ oq5,,",12
Ciu 26 D0 thdng tin liOn lac giila cdc phi irdnh gia trdn vir tru voi
ngLliri ta clir sir cturg s6r-rg vO tuy6n cti tlroc song trong khodng:
Trang 18.,\ NiLr tai nr0t noi cc mOt tir truLdug bi0n tli0n thco tho'i gian thi tai noj clir xLrit hi0n nt6t cliOn trLrotr-s
rolir'
Il Niu tai tl6r noj co utOt dicn lrirtltg kh6ng ddu thi 1ai nrri clti xuit hifn ntOt tir tnrtlng xody.
C .DiCn tnrr\rig \.a tir fitrong ii hai nri"t th.i hi[n lJlic nhru cir.r nr6t loai hrLols cltrl' nhzit goi li cli€n ttr' tlLrirrrg.
D Di0n tLL trrrr\'ng xuit hi€n rturg quanh rrdt chO co tia ltra cli6n
Ciiu 28 N,lach dao clOng I-C dang clao clOng tu do voi chu kj,' ld T Thdi gian r.rgin nhdt ltur trlr lirc n[ng
Ctiu 29 ll'g1q 1hi nghi€m l-dng (YoLrng) r,6 giao thoa itnh sang, khoang cicir tir mtin quau salt d6n
pr,r1 llhiy.lg cl.rrlii nal ktre ta 2,0 m khoarr!circligiira hai khe ld 1.2 urm Bu(rc sting 6nh sdng don sac
clirng tlorrg thi nghiOm ld 0 60 pn Khoiing ciich tir vin tOi thir ba dOn vdn sdug trLrng tAm lir
Ctiiu 30 'frong thi nghi€rr I-ing (Young) vd giao thoa 6uh siurg khi chieu vu)o hai khe r16ng thoi hail.,irc xu clcrn slic thi ta qr-ran s6t dLroc tr0n mdn hai h€ 'u'd.n giao thoa r,6i cic liholing vdn lAn ltrot ld0.3urnr I'i 0.2 rtrnt I{hoiing cdch tir viin sdng tmng tim den r'6n siurg gdrt irhit ciug mau r'6'i nri ld
\ 1." nru B 0.6 mnt C 0.3 mm D 0,2 mm
Ciu 31.'l;o1r-l tfiinghiOnt I-dng (\'oung) r,€ giao thoa.tinh sing tAi cliem N4 tren nriin c6 vAn siug b4c -5.l)i chLryin nri\n ra xa th0rl 20 cnr tai cliCm M c6 vdn tOi ttrir 5 I(hoang chch tiL ntin qttan sdt d€n hai khctnLric khi clich chLnCn ll\
Ciu 32 Dic cli0nr cptan trong ciraqr-rang phO lien ttrc lzi
A phtr thu6c Viro thdnh phlin ciu tao vd nhi0t d0 cita ugudu sing
ti pfig thLr0c vi)o thdnh phin ciLr tao uhlurg lih0ng phu thueic vdo nhiOt clQ cira ngudn sdng.(' l<hong phu thr-r6c vao tlii)nh phin cdu tao nhtLtrg phtr thuOc viio nhi6t d6 cira ngudn s6ug
D Iihfing phu thLr6c vdo thi\nh phin ciu tao r.,ri cting lthOng phq thtrOc vl\o nhi0t Cl6 ctra ngttortsling
Ciiu 33 Cho mach llLC miic ndi tiOp Di€n hpr xoay chi0Lr giirir hai cliu doan nrach ld
tr =120Jlcos(l00zl)(l/).Dgtucaml,cuacu6nddythr,rdnchn.rthaydOi clLro-c.DiduchinhLthi th6yLhi 1- =''u lltlri clicn dp hi€Lr ch-rng giiLa hai bein tLr cli€n clzrt ctrc clqri bnng 80",,5V Di6n tro'R cta
/L
nrach c,6 gi6 tri blurg
c 10.5 o D 20.,6 ()
A 10 Q B 15 O,
Ciu 31 Dirt yr\cr hai clig dom mach RLC nrirc nOi tlep mOt clien ip xoal' chi0Lr rr = Lr Ji cos(2nft)(I'/) , voi
Lr lihOng dOi con f thal' 6$1 duo c I-li0n tuoug cdng huong dign xd1' ra lihi :
.
A tha1, d6i d0 tu'czul L dC dien rip hi0u drmg giira hai ildu cnOn ciur (tirLrdn) clat cuc Clai.
ts thay c10i c1i9n cir-urg C ae Olen irp hi0u drurg giira hai bari tLr Cti0n dat cr,tc clai.
C tha1, ddi R c10 c6ng sudt ti6u thu tr0n do4n mach clat cllc alai.
D thal'clfri tfln rO f ae diQn dp hiQu dgrg giira hai diu cliOn tro R c14t ctrc ctai.
Ciiu 35 Chi€u m6t tia siurg mdu vdng tir thuy tinh toi mft phAn c6ch voi mdi trrrons kh6ng khi,
:-ngrLoi ta thi1, tia 16 di ld ld rn4t phAn circh giira hai mdi truong Thay tia sdng vdng bdng mQt chum tia
slir.rg song song hep chira d6ng thoi ba 6nh s6ng don sdc: miiru cJ6, mdu lttc vd mAtt tim chi6u tdi m4tphdn cach trOn theo cliurg hu6ng cfr thi chirm tia s6ng 16 ra ngodi khOng khf lA
A chilrn tia sdng miu luc
B hai chtrm tia sdng mdu h-rc vd mAu tim
C ba cltirrn tia sirng : uriu d6 miru h.rc vir mdu tim
l'tru'oNc THPT cr-iuygN ptrsp HA NQI -TIJI Ti-tU'DAI HOC LAN ;-(ZO t0) - M6n VAr li - l\{n da 381 4
Trang 19D chirur til siirrrt rtnu tld.
{'iu 36 QLrlttls pho vach phat xa cult natri co hai vach vrir-rg r o'i bLnic stirrs 0.-5ti90 prm r,.i 0.,5g96 rLnr (]Lranu ph6 r'ach hep thu cua natri si
A thi0Lr
'ing hai dnh sdng co bu.6'c s6ng 0,5g90pLnr i i 0.5gcxr1rnr.
B thicu
'ing rl.i :i'h sdng co brL(rc s6ns nhir hcr' 0.-ig9O!rnr
C thi0u ving mQi 6nh sdng c6 budc song I6n ho.n 0,,5g96pm
D thi€u Ving.moi dnh siing c6 brLoc song trong khoang tir 0.5890pu1 r,ii 0,5g96ttm
ciiu 37 Cho: hing sd Plang h : otr:-s to-!
1.1s1; io .t6*,i,rt, ,in-,-r tr-ong chap lt66's;:;.;Uii;r/s) Nrng
lLrong cira Photon cr.ra nr0t dnJr sdng clon sic lu\ 4.85.10-reJ An[ r"nf clo' sic clJc6
'rdu
(lirr 38 l'rt'rtr-q nrOt Ong.t'onghen hi0Lr cliOn th.{ giii.r rir6r a catdt li Lt.\K:'i'i;OO V 86 qua d6nptrring clc'clt'ott btrt I-u I'hoi cnt6t C'lro e = -1.6.10i" (': c : 3.10\ rrr,s: t, = O.CjS-.i0rrl;"8i1;;;;;F
nitillr nlrit ctur Liu,X tlo r.lrrg phdt ra Ia
n 8.i2.10-" r B 8.21.10-rr'r C g.i2.i0-r('m D g.21.r0-r2'r.
Ciiu 39 Anh siing hui'nh clLlang li\ lnh sirng phrit qLralts
,'\ I'eto dr'ri tlong nr6t khohng tho'i gian ndo d6 sau khi tiit irnh s6ng Lich thic6
I] haLr nhLr rir nsa).sau khilirt hnlisirng kich thfch
(' c(r bu'6c s6'g nho hcvn bL'ric sirng iurh sdng hiclr thfch.
I) clo clic tirlh th€.yrh6t ra lihi chLctc liich thic:li ',ing rirrh siing tliich hc.rp.
Ciiu -10'Clro biet: hing sO Pldng h:6.625.10-'r+.1.s, t0e ,i0lirrh siing rropg chin lili6ng c =3.10s m/s,tlo ltirl cli0n tich clectron l,,l : t,6 l0 '" C COng thoiit elr'ctron cua nr6t kirn 6ai clirlg
ldm catot ld A .
: 3.6 cV (ii6i han quang cliOn cira I<inr loai do ldr
II Pl-lAN nlCruC.: Mii ttri sirrlt clti tluo'c kint nQt trutttg ltoi lthitr: pttirt A ttogic phirr B
Citr ll N40t scri da1' dii 2l-, duoc kco cang c6 cdc ,t8 {3 .1.9 , i c,C', linl., Scri clffr, rll'oc kiclr tliich rt6 tao
flil'",d j:1s lt Ctr Irir sao ch{r, tlq"""i lyi cliLr A i i\ Il thi cll co cliirn clinh giilri C crui sr.r'i on1, tri nirt s6ng I\4 r,d N
ii lxri tliCnr tr0rt clir' nirn hai bOn di0m C vi cich C nrOt cloiur x (x<1.) nhLl nhau Dao d6ng tai .a aiE,rr'V
"al\ sc
A c6 bien clO r-rhrr nhau vzi ciurg pha.
ll c(r bien clO ldrirc nhau vz:r ciurg pha.
C cri bi0n d0 nhrr nhau vd nglroc pha nhau.
D ctl biOn dQ lthac nhau vd ngu'oc pha nhau.
Ciiu 42 Ivl6t con klc lir xo vdt nirng c6 kh6i luolg li clidu theo phuong
t''ilu {.4 lvl()t coll tac lo xo vat lli1l.}g co kltOt luolg li nt = 100 g, dao Cking cli0l hoir
t|itrlr: x:4cos(10.,61)crr Ll,yg=l0nr/s2.Ddngnirngcuavat lihi c6 li cl6x:2cprld
Trnn-ri qud trinh tnrydn ai di€n nurg di xa c6ng sudt hao pli tr€n duong clliy tai cli6n
A rr lc1 rrii tho.i uizur truydn di0n
B il le voi chi6u cliri du.ong cliy tiri c1iQn.
C ti l9 r,6i binir phlrong c6n,q su.it tuyAn di
D' ti 16 nghich vdi binh plruong cli€n 6p giira hai dAu cldy ri tram ph6t c1i0n.
TRU'oNG TFIPT clluYpN ot'tsp HA Nol -THi rt-tu'EAr Hoc LAN 3-(2010) - r\46n vzir li - N{n da 3gl 5
Trang 20('itr J5 \l,li .1,';.rn nl:.relr )S gut', It ri ehrlrn rtlteh nlr,., .\\l rir \1lj rrric ni'i tii'lt rtii.itltlrr Dt,;ui rrraclt AN{
gOnr di0n 1r'ti R1 nric nOl Uep voi cu0n thulin ciur co clO tLr canr I- I)oan nurc'h \18 gOrn dicn tro R2 nric n6i
1it{1r i,tii tLr di0n cir di0n dung C Khi dlt viio hai clau A.B nrOt c1i0n in xoal'chi0rr c(r giri tli hi€u dturg U thi cli6n
dp hierLr dung giirii hai cliu doan mach AM lli lJ1 cdn diOn a1 hiiL; tlrnrg giiru hai cliLr cloan mach N,lB lir {.J:.
NOu Ur = t./i - Ii; tll h6 thirc li6n h0 nao sau day ld clung?
,.\, I_: CItrRr B Cr: t_RrR: C LC: Rrt{: . D LItr : CRu.
Cliu -t6 IrlOt tu r1i0n co di€n dung C tich clign c15n hi.^u dien thO U,, cluoc nOi r'6i ntdt cuOn cam co hC
s0 trL carrr l, qLrl rl[r1 Lh(ra K (khcia K ngit) fqri tho'i cli0m t: 0 neuo'i ta clclng liircia K Phat bi6u ndosatt clil' lihi)ng cltrrlg'?
:\ lli0Lr c1i0n th0 tr€n tu di0n lan cliu ti€n bing lthOng ti thiri di6m r =
Cliiu .17 l)hht biCu nio.sau d0y lihdng dirng khi so srinh tia hOng ngoai vii tia tu'ngoai?
A cung blin chAt la s6ng cli0n tir'.
B cl6u tic clr,rng l6n kinh iurh
C clitr khOng nhin thdy bing nrit thrLo'ng
i) til tu ngoai c(r tlin s6 nhri htrn tia h6ng ngoai
Ciu 4ti 'l'hLrc hiCn siao thoa anh sring r,(ri hai khe I-iing( Young) crich nhuu a : 0.5 mm Min quan
siit crich hai khc nrOt lthoiurg D:1,0 nr Chi0u sirng hai khc biurg 6nh siurg trirng cci butrc s6ng0.101ttrt < 7 < 0.76prn 1)6rdug cira quang phO bac l thu chLtrc tr0n nrdrr lu
Ciu .19 I'hirt tri0Lr tr'ro sau diy lzi sai lihi n(ri v€ quang phO cua l\4rit froi?
A Quang ph6 tr,'tqlt Trdi nra ta thu ducrc thuc ra li\ cluang phd vach hip thLr do phin vo cira M{t
'l'roi ki cric chit trn tai o' the khi norrg cir iip sudt thip: con phlin l5i c6 nhi0t d0 rdt cao(cd 106 c19).
13 Ngtrierr cirLr ciic vach dcn trong cprane ph6 H'tit l-ro'i ta c6 th6 biet thiinh phin cAu tao cira lcrp volvlltl ll'()1.
C 'l'rong pho phdt xa cta lOi N4it l-roi chi cir anh siurg tr6n-u thir,
l) I'h0 phiit xa cua l6i lr4irt 'l'ro'i c(r tiL tia h6ng ngoai cl0n tia ganmril.
(liiu 50 'f'r'ong ngurtn tiL hidro, li.hi electron chuyOn clong trOn qr-rl clao K.c6 brin lifnh r,, : 5.3
!p-llm
tlti clectron c6 r,an t6c (Cho klr6i lrLong vii cl6 lcrn cli6n tfch cLra clectron lin lrLcrt li m:9.1.10-31 kg' e
: l.(r.10 "' C'.)
l'hco ch trinh Nf,ns cao ( 10 ciu tilcffu 5l r10n cf,u 60
Ciiu 51 N0u t0ng ruomen luc tiic dLurg len r,6t bdng kherng thi
A momen .: c10ng iuo ng cta r,?t thay ddi
I) gia t6c g(rc cira vAt thay ddi
Cl tOc c16 goc cira v6t kli6ng ctOi t<tri nlonen qudn tinh cira vdt khfrng d6i
D r'At ludn clfmg y€n
I) Khorirrg thr\'i {rian giila hai liin lien tiep cle nirng lLtong cli0n lnrcrng b.in-q niurg luong tu truo'ng
l-l{LloNC l'lll)T ctjuYnN oHSp HA Nol -TIlt TI-tu DAl t{oc LAN 3-(1010) - Mon var li - n{e dA 381