Question

The walls of a soap bubble have about the same index of refraction as that of plain water, n=1.33. There is air both inside and outside the bubble.

1. What wavelength (in air) of visible light is most strongly reflected from a point on a soap bubble where its wall is 294 nm thick?

2. What wavelength (in air) of visible light is most strongly reflected from a point on a soap bubble where its wall is 350 nm nm thick?

Answer 1

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