Physics · 2025
JEE Main · 29 January 2025, Shift 1 · Q40
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Electromagnetic waves carry…
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 :
Official answer
From NTA’s final answer key for this paper.
(2)
(A) is false but (R) is true
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JEE Main 2025 Physics question, with the answer from NTA’s final answer key. Where our answers come from.