Image Inversion and Magnification by Plane Mirror – Rankers Physics

Reflection by Plane Mirror: Practice Problem & Solution

Assertion (A): A virtual image formed by plane mirror may be inverted. Reason (R): Longitudinal magnification in this case of plane mirror is \(-1\).  
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

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Reflection by Plane Mirror. Understanding the underlying formula is key to arriving at the correct answer below:

Assertion A is true because a plane mirror forms a laterally inverted image. Reason R is true because for a plane mirror, longitudinal magnification \(m_L = - (v/u)^2 = -1\). However, longitudinal magnification does not explain lateral inversion.

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