Find what is the smallest thickness of a soap film

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Reference no: EM13653129

(a) What is the smallest thickness of a soap film (n=1.33) thatwould appear black if illuminated with 480-nm light? Assume thereis air on both sides of the soap film.

(b) What are the two other possible thickness for the film toappear black?

(c) If the thickness t was much less than λ, why would thefilm also appear black?

Reference no: EM13653129

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