JEE Main 2025 Physics question

PhysicsElectromagnetic WavesJEE Main 2025

Given below are two statements : one is labelled as Assertion (A) and 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 :

Answer: (2)

Solution

Assertion is false since em waves do carry momentum; reason (mass of photon is zero) is true.

Question ID VK-002312