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A soap film of thickness 0.0011 mm appears dark when seen by the reflected light of wavelength 580 nm.

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asked Mar 31, 2018 in Physics by Nisa (2,540 points) ● 1 ● 11

A soap film of thickness 0.0011 mm appears dark when seen by the reflected light of wavelength 580 nm. What is the index of refraction of the soap solution, if it is known to be between 1.2 and 1.5 ?

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answered Mar 31, 2018 by rubby (7,550 points) ● 1 ● 3 ● 5
selected Apr 1, 2018 by Vikash Kumar
 
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Given d = 0.0011 x10–3 m

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