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Moving Plane Mirror, Stationary Object

The object is...

Question

The object is stationary and the plane mirror has a velocity of $2^i$ . If the mirror is along the y axis, then the velocity of image is .

A

2^i

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B

4^i

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C

6^i

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D

Null vector

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Solution

The correct option is B $4^i$
When the object is at rest, the velocity of the image is twice that of the velocity of the mirror in the direction perpendicular to the plane of the mirror.

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