We are looking down at a film at 90 deg, and a shining orange light with...

We are looking down at a film at 90 deg, and a shining orange light with a wavelength(vacuum) of 710 nm is on the film. It has a refractive index of n = 1.32, and is surrounded by air.

A) draw out a diagram with refractive indices of the surfaces

B) What is the minimum thickness of the film for it to look bright due to reflected light?

Pls show steps and whatever else you can show to understand the question, thanks!

Solutions

Expert Solution

2nt = (2k–1)λ/2 now for minimum thickness k=1, t=λ4n=710nm4×1.32=1.34μm ans.

genius_generous answered 1 year ago

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