HCMon rm 16r NGrrrEp D$r Hec np cuiNH eur NAvr zlr.L Ngdnh ddo tpo: Vft ly hqc Hqc phAn thi: Phuong ph6p ghi nh$n brlc x4 Thdi gian ldm bdi: 150 phrit khdng te tnOi gian ph6t dA DINH LUa
Trang 1TRuol.rGDN HQC SUPHAM TP HCM
on rm 16r NGrrrEp D$r Hec np cuiNH eur NAvr zlr.L
Ngdnh ddo tpo: Vft ly hqc
Hqc phAn thi: Phuong ph6p ghi nh$n brlc x4
Thdi gian ldm bdi: 150 phrit khdng te tnOi gian ph6t dA
DINH LUaT Ti Lp NGHICH niNn pHuoNG Kr{oANG CACH Ciu 1 (1 tli6m) Ph6t bi6u vd chimg minh mQt c6ch tryc quan dinh luflt ti lq nghfch binh phucrng kho6ng c6ch.
CAu 2 (2 tli6m) g6 tri mQt thi nghiQm ee n6m chring dinh luQt ti l0 nghich binh
phuong kho6ng c6ch C5c budc tii5n hdnh.
Cfru 3 (3 tli6m) DC nghi mQt hq do ghi bric x4 dtng trong thi nghiOm trOn Giii thich sg ho4t tlOng oba cdc kh6i chric ndng trong hQ do ghi tr€n
CAu 4 (a di6m) Sau khi thi nghiQm nguoi ta c6 b6ng sO tie,r sau ghi nh6n t6c dQ
d6m theo khoing c6ch til nguiin ph6ng x4 d6n detecto:
- Thi sinh tlugc sri dung thi liQu vir miy tfnh khi lirn bii
- Cr[n bQ coi thi kh6ng giii thich gi th6m
Hg t6n thi sinh: SO b6o danh:
Khoing
cdch x
(cm)
Tdc ctO
dtim R (s6
il6m/phf0
27098 5825 2943 1323 89s 733 499 415 314
Xdc tlinh phucrng trinh cria dfnh luQt.