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MENIADAKAN DISPERSI : Prisma Akromatik<br />
(<br />
f<br />
1<br />
gabmerah<br />
=<br />
'<br />
nm m<br />
n<br />
1<br />
2<br />
f<br />
1<br />
gabungu<br />
(n’u – n’m)β ’ = (nu – nm) β<br />
Lensa Akromatik.<br />
1 1 n 1 1 u 1<br />
− 1)(<br />
− ) + ( −1)(<br />
− ) = ( −1)(<br />
R R n R R n R<br />
1<br />
2<br />
'<br />
n u<br />
1<br />
1 n 1 1<br />
− ) + ( −1)(<br />
− )<br />
R n R R<br />
Flinta Kerona Flinta Kerona<br />
PRISMA PAN<strong>DAN</strong>G LURUS (nh’ – 1) )β ’ = (nh – 1) )β<br />
(Syarat : Koheren)<br />
(A, f, Δ ϕ sama)<br />
λ<br />
Cermin Fresnell<br />
Percobaan Young<br />
INTERFERENSI<br />
2<br />
p . d 1<br />
Max = ( 2k)<br />
λ<br />
2<br />
p.<br />
d 1<br />
Min = ( 2k<br />
−1)<br />
λ<br />
2<br />
p . d 1<br />
Max = ( 2k)<br />
λ<br />
2<br />
p.<br />
d 1<br />
Min = ( 2k<br />
−1)<br />
λ<br />
2<br />
Max rk 2 = ½ R (2k-1)λ<br />
Cincin Newton<br />
(gelap sbg pusat) Min rk 2 = ½ R (2k) λ<br />
Selaput tipis<br />
Max 2n’ d cos r = (2k-1) ½ λ<br />
Min 2n’ d cos r = (2k) ½ λ<br />
Max d sin θ = (2k + 1) ½<br />
1<br />
2<br />
74
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