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Intensity Explanation in YDSE

The colour of...

Question

The colour of light that travels with maximum speed in the glass is:

A

Blue

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B

Green

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C

Red

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D

Violet

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Solution

The correct option is C Red
In the given options, red has maximum wavelength. Frequency remains constant on change of medium. Since $v = f λ$ , maximum speed corresponds to light of maximum wavelength.

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