Q 12-11-061JEE MainJEE Main 2024 (4 Apr, Shift 2)Easy
Given below are two statements: one is labelled as Assertion **A** and the other is labelled as Reason **R**.
**Assertion A:** The number of photons increases with increase in frequency of light.
**Reason R:** The maximum kinetic energy of emitted electrons increases with the frequency of incident radiation.
In the light of the above statements, choose the most appropriate answer from the options given below:
Answer: (C) **A** is not correct but **R** is correct.
**A** is wrong: for a given power, a higher frequency means more energy per photon, so fewer photons. The number of photons depends on intensity, not on frequency.
**R** is correct: $K_{max} = h\nu - \phi$ increases with frequency.
Solution by Sreeraj P, M.Sc Physics