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Question

For a glass prism (μ=√3) the angle of minimum deviation is equal to the angle of the prism. The angle of the prism is45906030

A
45
B
90
C
60
D
30
Solution
Verified by Toppr

Using, μ=sin(A+δm2)sinA2According to question, δm=A∴√3=sinA+A2sinA2(Given μ=√3)√3=sinAsinA2=2sinA2cosA2sinA2orcosA2=√32=cos30∘⇒A2=30∘⇒A=60∘

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