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Thin Films again - Help?

by rachiebaby17
Tags: thin films
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rachiebaby17
#1
Apr29-09, 08:04 PM
P: 7
1. The problem statement, all variables and given/known data

A camera lens (n = 1.90) is coated with a thin film of magnesium fluoride (n = 1.40) of thickness 90.0 nm. What wavelength in the visible spectrum is most strongly transmitted through the film?


2. Relevant equations

?

3. The attempt at a solution

I have no idea where to start, is there an equation that will use both n's at once?
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rl.bhat
#2
Apr29-09, 09:01 PM
HW Helper
P: 4,435
Search in Google for thin film interference.


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