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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

`2Vsintheta`

B

`2V`

C

`2Vcostheta`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
`vecV_(I)m=vecV_(0)m` (normal to plane mirror)
`vecV_(I)_m-vecV_(m)=-(vecV_(0)-vecV_(m))`
`vec(V_(I))-Vsintheta=-(0-vsintheta)`
`V_(I)=2Vsintheta`
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