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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Electromagnetic waves carry energy but not momentum. Reason (\(R\)): Mass of a photon is zero. In the light of the above statements, choose the most appropriate answer from the options given below :

Both (A) and (R) are true and (R) is the correct explanation of \((A)\)

Both \((A)\) and \((R)\) are true but \((R)\) is not the correct explanation of \((A)\)

(A) is true but (\(R\)) is false

Electromagnetic Waves

JEE Main level, single correct, medium

23 of 165

Question 23 of 165

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Electromagnetic waves carry energy but not momentum.
Reason (\(\mathbf{R}\)): Mass of a photon is zero.
In the light of the above statements, choose the most appropriate answer from the options given below :

Show answer and solution

Answer: (C) (A) is false but (R) is true

EM wave carry both energy and momentum. Rest mass of photon is zero.

JEE Main question paper PDF

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JEE Main 2025 Apr 2 Shift 1 question paper

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More Physics practice

JEE Main Physics practice question on Electromagnetic Waves (Electromagnetic Waves and Maxwell's equations), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.