KCET 2020 Physics Solved Paper

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Question : 9 of 60

Marks: +1, -0

The refracting angle of a prism is A and refractive index of material of prism is cot

𝐴

2

. The angle of minimum deviation is

180° − 2𝐴
180° − 3𝐴
180° + 2𝐴
90° − A

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