F
Dd so'l
K.5 B-
(Sinh vi6n kh6ng duoc sri'clung tii lie u;
3
.ts ' r'l
Khoa VOt Lf
Trddng Dai Hoc Srr Phgm Tp.HCM
tA
DE THI MON: QUANG HQC
Thtri gian : 120 phfrt
(Ldp Cfi NhAn)
CAu I : Hiy trinh hiy n0i dung phutlng phiip drii Fre sncl :
Phd<Jng phrip chia ddi.
* Tinh di6n tich dt1i.
Bidu thti'c chdn dOng gdy ra do todn bO mat V,tn2
Uu nhr/dc ftidm cria phdtJng phdp.
Cfiu 2 : Dtfilng ddc trtlng phd ph6t xa cria vdt cletr theo quan didm ltrdng tfl cria Planck.
CAu 3 : Ngdili ta thtrc hiOn nhi6u xa Frlunhof'cr vrli -5 khe hcp gidng he I nhau. hi r0rrg nr6i khc
a = lmnt, ctic khc crich rldu nhau. khoiirrg cdch giita 2 khe lien tidp l= 5 mm. Chidu thfrng u6c
xuting niirr ph8ng cdc klic I chirm tia sorrg song, dttn sjc cti 2 = 0,5 prnr. HiCn tuttng tldtlc quan
siit tr6n mdn E clit tai nriit phing deu ciia thdu kinh hdi tu L cd ti6u cd l'= 50 cnr.
a. *fray dd nghi4 kiiu sdp dat clung cu dd quan szit vdn.
b. Chi x6t trong vin giifa nhi6u xa
Hly md ti hi€n tdgng quan siit dddc.
- ifti€4inh't'itri caic ctlc dai vd ctlc tidu giair ttreia.
c. Coi 1,, li cLfrJng dir ctlc dai gitta rrhi0u xa Lrolrg Lrudng hop 4 khc. Hiiy rinh ctrtiug d0 ciic
)t.f"1 bu DL'''l