A thin film of oil (n=1.50) of thickness 0.40 μm is spread over a puddle of water (n=1.33) . For

Name: A thin film of oil (n=1.50) of thickness 0.40 μm is spread over a puddle of water (n=1.33) . For which wavelength in the visible spectrum do you expect constructive interference for reflection at normal incidence?
Uploaded: 2022-07-02T10:04:19-08:00
Duration: 2 min 21 s
Channel: Prabhu Ramji
Description: A thin film of oil (n=1.50) of thickness 0.40 μm is spread over a puddle of water (n=1.33) . For which wavelength in the visible spectrum do you expect constructive interference for reflection at normal incidence?

Question

Prabhu Ramji · Accepted Answer

Step 1: Calculate the wavelength for constructive interference at the first reflection at the in

Question

A thin film of oil $(n=1.50)$ of thickness $0.40 \mu \mathrm{m}$ is spread over a puddle of water $(n=1.33) .$ For which wavelength in the visible spectrum do you expect constructive interference for reflection at normal incidence?

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