Dual Nature of Radiation and Matter question for NEET / JEE Main, with solution

Answer: (D) $\dfrac{h}{e}$

Concept. $V_0 = \dfrac{h}{e}\nu - \dfrac{\phi}{e}$.

Step 1. Slope. $\dfrac{h}{e}$, the same for every metal.

Answer. $\dfrac{h}{e}$ (Option D).

Solution by Sreeraj P, M.Sc Physics