A beam of light propagating in medium A with index of refraction n (A)passes across an interface into medium B with index of refraction n(B). The angle of incidence is greater than the angle of refraction; v(A) and v(B) denotes the speed of light in A and B. Then which of the following is true

v(A) > v(B) and n(A) > n(B)

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v(A) > v(B) and n(A) < n(B)

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v(A) < v(B) and n(A) > n(B)

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v(A) < v(B) and n(A) < n(B)

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Solution

The correct option is B
v(A) > v(B) and n(A) < n(B)

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^{μ} .

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30^{\circ}

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