Assertion :Critical angle of light passing from glass to air is minimum for violet color. Reason: The wavelength of blue light is greatest to the light of other colors.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is C Assertion is correct but Reason is incorrect
According to Snell's law the critical angle is given by,
$s i n c = \frac{1}{μ}$
where $μ$ is refractive index of medium. Since $μ$ decreases with increase in $λ$ , hence C is minimum for the violet color which has smallest wavelength.

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