A) 4pnR
B) 2pnR
C) \[\frac{nR}{2\pi }\]
D) \[\frac{nR}{4\pi }\]
Correct Answer: A
Solution :
When plane mirror rotates through an angle q, the reflected ray rotates through an angle 2q. So spot on the screen will make 2n revolution per second.You need to login to perform this action.
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