JEE Main 202529 JanuaryMorning Shift
- Exam
- JEE Main
- Year
- 2025
- Date
- 29 January
- Shift
- Morning Shift
- Subject
- Physics
- Chapter
- Electromagnetic Waves
JEE Main 2025 · 29 January · Morning Shift · Physics · Electromagnetic Waves
Given below are two statements : one is labelled as Assertion (A)...
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 :
Options
- ABoth (A) and (R) are true and (R) is the correct explanation of ((\mathbf{A}))
- BBoth ((\mathbf{A})) and ((\mathbf{R})) are true but ((\mathbf{R})) is not the correct explanation of ((\mathbf{A}))
- C(A) is false but (R) is true
- D(A) is true but ((\mathbf{R})) is false
Correct answer
C. (A) is false but (R) is true
Step-by-step solution
EM wave carry both energy and momentum. Rest mass of photon is zero.