Teaching EMRS PGT Mock Test 2023 Physics Dual Nature: Photon and Matter Waves Photoelectric Effect and Wave Theory of Light
When a piece of metal is illuminated by a monochromatic light of frequency ν, then stopping potential is Vs. When same surface is illuminated by light of frequency 2ν, then stopping potential becomes 3Vs. The value of threshold frequency for photoelectric emission will be
1
ν
2
\(\frac{\nu}{2}\)
3
\(\frac{\nu}{4}\)
4
None of these