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Question: Find the film thickness if RIs of oil & glass are 1.3 & 1.5 respectively.
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Subject: Applied Physics 2

Topic: Interference And Diffraction

Difficulty: Medium


A white light is incident normally on a uniformly thin film of oil which covers a glass plate. Complete destructive interference is observed for $\lambda s$ 5000 & 7000 $\mathring{A}$ & no other$ \lambda $ in between. Find the film thickness if RIs of oil & glass are 1.3 & 1.5 respectively.

applied physics 2 • 109 views
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modified 6 months ago by gravatar for Sanket Shingote Sanket Shingote ♦♦ 220 written 8 months ago by gravatar for neeta.vanage neeta.vanage60
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