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Light incident normally on a plane mirro...

Light incident normally on a plane mirror attached to a galanometer coil retraces backwards as shown in figure . A current in the coil produces a deflection of `3.5^(@)` of the mirror. What is te displacement of the reflected spot of light on a screen placed 1.5 m away ?

A

`2mu h`

B

` (2h)/(mu)`

C

`(2h)/(mu - 1)`

D

`h ( 1+ 1/mu)`

Text Solution

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The correct Answer is:
B
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