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An object and a plane mirror are shown i...

An object and a plane mirror are shown in figure. Mirror is moved with velocity `V` as shown. The velocity of image is :
.

A

`2 V sin theta`

B

2 V

C

`2 V cos theta`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
`vec(V)_(1)=vec(V)_(0)m=` (normal to plane mirror)
`rArr vec(V)_(1)m-vec(V)_(m)=-(vec(V)_(0)-vec(V)_(m))`
`vec(V)_(1)-V sin theta =-(0-V sin theta)`
`V_(1)=2V sin theta`.
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