Physics · Electromagnetic Waves
JEE Main 2025 — 29 January, Morning Shift — Question 39
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 correct answer from the options given below
- Option A:
(A) is true but (R) is false.
- Option B:Correct
(A) is false but ( ) is true.
- Option C:
Both (A) and (R) are true but (R) is not the correct explanation of (A).
- Option D:
Both (A) and (R) are true and (R) is the correct explanation of (A).
Answer: B
Step-by-step solution
Assertion is false because em waves have momentum.
Answer key and solution verified before publishing.
Practise Electromagnetic Waves
Start with this question, then two more from the same chapter — with a tutor that explains every step. Free.
- Exam
- JEE Main 2025
- Subject
- Physics
- Chapter
- Electromagnetic Waves
- Topic
- Power , Energy and Intensity of EM Waves