If you scratch your left cheek standing in front of a plane mirror, your image

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Scratches its left cheek.

Scratches its right cheek.

Scratches both cheeks one by one.

Does not scratch at all

answer is B.

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Detailed Solution

If you scratch your left cheek standing in front of a plane mirror, your image scratches its right cheek.
Lateral inversion means the outward reversal of the mirror image's left and right when compared with the object. Question Image

If we stand in front of the plane mirror and scratch our left cheek, then the image seen on the plane mirror appears to be scratching the right cheek. This is due to the property of the plane mirror which is lateral inversion. Lateral inversion means that the right part of the image appears left and the left part of the image appears right.

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