Given below are two statements: Statement I: Stopping potential in… | JEE Main 2023 (25 Jan, Shift 2)

Q42JEE Main 2023 · 25 JAN · SHIFT 2Easy

Photoelectric Experiment: Intensity, Stopping Potential & Graphs

Given below are two statements:

Statement I: Stopping potential in photoelectric effect does not depend on the power of the light source.

Statement II: For a given metal, the maximum kinetic energy of the photoelectron depends on the wavelength of the incident light.

In the light of above statements, choose the most appropriate answer from the options given below

Show answer and solution

Answer: (c)

Statement I: $eV_0 = h\nu - \phi$ has no intensity (power) term, so it is correct.
Statement II: $K_{max} = \dfrac{hc}{\lambda} - \phi$ depends on wavelength, so it is correct.
So the answer is (c) both statements are correct.

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