White light is incident on a equilateral prism. In case of …

Physics Ray Optics Mix MCQ (Single Correct)

White light is incident on a equilateral prism. In case of minimum deviation of a particular colour-

Angle of incidence will be maximum for violet colour

Angle of incidence will be minimum for violet colour

Angle of refraction will be equal for all colours

Angle of emergence will be minimum for red colour

Text Solution

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The correct answer is:

CHECK THE SOLUTION.

(a, c, d)

r 1 = r 2 = in case of minimum deviation.

and = μ ⇒ sin i = μ sin

μ v is maximum

so i for violet will be maximum

μ R is minimum

So e = i. i.e. e will be minimum for red

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