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89. We infer from Sample Problem 352, that (with angle in radians)
∆
θ
=
λ
d
for adjacent fringes. With the wavelength change (
λ
'
=
λ
/
n
by Eq. 358), this equation
becomes
∆
′ =
′
λ
d
.
Dividing one equation by the other, the requirement of
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.
 Spring '08
 Any
 Physics

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