What is the minimum thickness of a thin film required for constructive interference in the reflected light from it? Given, the refractive index of the film=1.5, the wavelength of the light incident on the film =600nm?

Question:

Options :

(a) 100 nm
(b) 300 nm
(c) 50 nm
(d) 200 nm

Answer :

(a) 100 nm

Answer Steps :

step 1

step 2

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