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There are two plane mirror with reflecti...

There are two plane mirror with reflecting suface faciing each other.The mirrors are moving with speed v away form each other .A point object is placed between the mirrors.The velocity of the n-th image will be

A

(a)nv

B

(b)2nv

C

(c)3nv

D

(d)4nv

Text Solution

Verified by Experts

The correct Answer is:
B

`v_(IG) = 2 v_(MG) - v_(OG)`
`v_(IG_(1)) = 2v ,v_(IG_(2)) = 4V.............v_(IGn) = 2"nv"`
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ALLEN -GEOMETRICAL OPTICS-EXERCISE-2
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