Angle of glass prism is 60∘ and refractive index of the material of the prism is 1.414,then what will be the angle of incidence, so that ray should pass symmetrically through prism
A
38∘61′
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B
35∘35′
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C
45∘
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D
53∘8′
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Solution
The correct option is C45∘ incident ray and emergent ray are symmetrical in the cure, when prism is in minimum deviation position.
Hence in this condition μ=sinisinA2⇒sini=μsin(A2)⇒sini=1.414×sin30∘=1√2⇒i=45∘