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Figure shows a torch producing a straigh...

Figure shows a torch producing a straight light beam falling on a plane mirror at an angle `60^(@)`. The refected beam makes a spot P on the screen along y-axis. If at t=0 the mirror starts rotating about the hinge A with an angular velocity `omega=1^(@)` per second clockwise, find the speed of the spot on screen after time t=15s

A

`(pi)/(15) m//s `

B

`(pi)/(30) m//s `

C

`(2pi)/(15) m//s`

D

`(pi)/(60) m//s`

Text Solution

Verified by Experts

The correct Answer is:
C
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