JEE Main 2025 Physics question
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.