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Moving Object, Stationary Plane Mirror

A plane mirro...

Question

A plane mirror is moving in a circle in front of a stationary point object O as shown in fig. Then path of image of object is:

A

circle.

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B

straight line.

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C

ellipse.

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D

parabolic.

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Solution

The correct option is B straight line.
Consider 3 different position of the mirror,
The object is placed fixed
also incident angle = reflected angle,
$∴$ images formed will be on the same line for all the cases.

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