Hi this Q 1. Aray of light passes from vacuum into a medium ofrefractive index u, the angle of

Hi answer this Q
1. Aray of light passes from vacuum into a medium ofrefractive index u, the angle of incidence is foundto be twice the angle of refraction. Then the angleof incidence is(A) cos-1 (u/2)(B) 2cos-(u/2)(C) 2sin- u(D) 2sin-‘(u/2) answer with explanation, images. And will mark u as branliest.​

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