A metallic surface is | MODERN PHYSICS

JEE MAIN 2023

11-04-2023 S1

Question

A metallic surface is illuminated with radiation of wavelength $\lambda$, the stopping potential is $V_0$.. If the same surface is illuminated with radiation of wavelength $$ 2 \lambda, $$, the stopping potential becomes $\frac{V_0}{4}$ . The threshold wavelength for this metallic surface will be

Select the correct option:

$\frac{\lambda}{4}$

$4 \lambda$

$\frac{3}{4} \lambda$

$3 \lambda$

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✗ Incorrect. Try again or view the solution.

Solution