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A ray of light travelling in a medium of refractive index n,is incident on a medium of refractive index n2(< n1) at an angle of incidence e. The reflected and refracted rays make an angle of 120^° with each other. Then the criticalangle for the boundary separating the two media is(1) sin tan02(2) sin-1V3 +tano2tan0(3) sin 43 -tan(4) sin -(2cot 0)

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Solution

99996114666-0-0

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