Relative Motion of Object, Image, and Plane Mirror – Rankers Physics
Topic: Ray Optics
Subtopic: Reflection by Plane Mirror

Relative Motion of Object, Image, and Plane Mirror

Assertion (A): If there is relative motion between a point object & a plane mirror then there must be relative motion between object and image formed by mirror.
Reason (R): If the gap between object and mirror will change, the gap between object and image remains same.
 
Both (A) & (R) are true and the (R) is the correct explanation of the (A)
Both (A) & (R) are true but the (R) is not the correct explanation of the (A)
(A) is true but (R) is false
Both (A) and (R) are false

Solution:

Assertion A is true because if the object moves relative to the mirror, its image also moves, causing relative motion between object and image. Reason R is false because for a plane mirror, the object-image gap is twice the object-mirror gap, so if the object-mirror gap changes, the object-image gap also changes.

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