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# Monochromatic light of variable wavelength is incident normally on a thin sheet of plastic film in air. The reflected light is a maximum only for =...

Monochromatic light of variable wavelength is incident normally on a thin sheet of plastic film in air. The reflected light is a maximum only for λ = 444.3 nm and λ = 622.0 nm in the visible spectrum. What is the thickness of the film (n=1.57)? [Hint: assume successive values of m.] Express your answer to three significant figures and include the appropriate units

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given values, wavelength λ1 =444.3 nm and λ2 =622.0 nm [(m 1 +1/2)/(m 2 +1/2)] =622.0 nm)/(444.3 nm)       [(m 1... View the full answer

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