Verified Solution • 2025–26 Session
moderate
QNEET-2022-Ph-511: NEET 2022 Physics - Class 12 NEET-2022-Ph-511 Solution: The light rays having photons of energy 4.2 eV are falling on a …
The light rays having photons of energy 4.2 eV are falling on a metal surface having a work function of 2.2 eV. The stopping potential of the surface is 6.4 V 2 eV 2 V 1.1 V
Multiple Choice Options
- A 6.4 V
- B 2 eV
- C 2 V
- D 1.1 V
Step-by-Step Verified Solution
We know, K E max = h v _ h v 0
e V 0 = h v _ h v 0 ( _ K E max = e V 0 )
e V 0 = 4.2 e V _ 2.2 e V
_ V 0 = 2 V