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Wien's Displacement Law

The wavelengt...

Question

The wavelength of yellow light is equal to the following means of wavelength of violet and red lights:

A

square of mean

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B

arithmetic mean

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C

geometric mean

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D

harmonic mean

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Solution

The correct option is B arithmetic mean
Yellow lies exactly in the middle between violet and red in the visible spectrum and hence the wavelength of yellow light is the arithmetic mean between the other two.

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