Laws of Reflection and Paraxial Rays – Rankers Physics

Reflection by Plane Mirror: Practice Problem & Solution

Assertion (A): Law of reflection is applicable for all type of mirrors. Reason (R): Rays which are parallel to principal axis are known as paraxial rays.  
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:

Laws of reflection are fundamental and apply to all mirrors, so (A) is true. Paraxial rays are rays close and parallel to the principal axis, so (R) is true. (R) defines a term, it does not explain the universality of reflection laws.

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