PhysicsNEET 2022Photoelectric effect and Einstein's equation

Dual Nature of Radiation and Matter

When two monochromatic lights of frequency $ν$ and $\frac{ν}{2}$ are incident on a photoelectric metal, their stopping potentials become $\frac{V _{s}}{2}$ and $V_{s}$ respectively. The threshold frequency for this metal is:

A. $\frac{3}{2} ν$ ✓
B. $2 ν$
C. $3 ν$
D. $\frac{2}{3} ν$

You have the answer. The worked solution — and why the other three were written — is part of a paid pack.

Dual Nature of Radiation and Matter

More from this chapter in past papers