Teaching MPPSC Assistant Professor Mock Test Series 2025 Physics Dual Nature: Photon and Matter Waves The Photoelectric Effect
When two monochromatic lights of frequency, v and \(\frac{v}{2}\) are incident on a photoelectric metal, their stopping potential becomes \(\frac{V_{s}}{2}\) and Vs respectively. The threshold frequency for this metal is:
1
\(\frac{3}{2} v\)
2
2v
3
3v
4
\(\frac{2}{3} v\)