Cdu 52:
De kie
m chuTn
g hie
u ufn
g Dop-ple , ngu&
i t
a b
o tr
i t
re
n mo
t
difdng ra
y thSn
g mo
t nguo
n a
m chuye
n dpn
g de
u v
di to
e d
o 3
0 m/s
,
phat r
a a m
v df i
t an
so xa
c din
h v
a mo
t ma
y t hu a
m dufn
g yen Bie
t a
m
truyen tr on
g khon
g kh
i v6i
toe d
o 34
0 m/s K
hi nguo
n a
m l
ai ga
n t
hi
may th
u d
o diTp
c t an
so am la 740
Hz
Kh
i nguo
n am r
a x
a t
hi ma
y th
u
do diXp
c t an
so am l a:
A 62
0 Hz
B 82
0 Hz C 78
0 Hz D 56
0 Hz
Gia
i
Khi nguo
n am l
ai ga
n ma
y t hu , t
a c6 :
f,
-^
f =
>f = f ,
^ = 7 40 M z3
0 ^674,7Hz
Kh
i nguo
n am r
a x
a ma
y thu , t
a c6 :
V
f = — 674,
7 =
Vay chgn dap an
A
Cdu 53:
Chum t ia
X pha
t r
a tC
f m
ot on
g t ia
X (on
g Cu-lit-gicf ) c
6 t
an
so
Idrn nh
at l
a 6,4.10^^Hz B
o qu
a don
g nan
g ca
c electro
n kh
i buf
t r
a kho
i
catot Hie
u die
n th
e giuT
a ano
t v
a cato
t cu
a on
g t ia
X l a:
A 13,2
5 k
V B 5,3
0 k
V C 2,6
5 k
V D 26,5
0 k
V
G\k\
Theo din
h lua
t ba
o toa
n nSn
g lupng , chiin
g t
a co
i nan
g lifpn
g
electron dap vao tar
n ki
m loa
i bkn
g nan
g li/pn
g cu
a photo
n d
o t
ia
X
phat ra : e
U =
f
hf 6,625.10-".6,4.10' ' ^
H/ <
Vay chgn dap an
D •
Cdu 54:
Mach dao don
g dun
g d
e cho
n son
g cu
a m
ot ma
y th
u v
6 tuye
n »
dien gom t
u die
n c
6 die
n dun
g C
o v
a cuo
n ca
m thua
n c
6 d
o ti
T ca
m L
f
Ma
y na
y t hu dtfofc son
g die
n ti
T c
o bi/df
c son
g 2
0 m D
e t hu
dUpc son
g
dien tCf c
6 biidr
c son
g 6
0 m , pha
i mS
c son
g son
g v6
i t
u die
n C
o cu
a
mach dao don
g mo
t t
u die
n c
6 die
n dung :
A C = Co B C
= 2Co C C
= 8Co D C
= 4Co
80
Giai Ch
i tie
t <
3 e th
i T
S D
H,
CB
Mon
VSt
11