JEE Main 2025 — Dual Nature of Matter Question with Solution

In photoelectric effect, the stopping potential $\left({\mathrm{V}}_0\right)\mathrm{v}/\mathrm{s}$ frequency $(\nu )$ curve is plotted. ( h is the Planck's constant and ${\varphi }_0$ is work function of metal ) (A) ${\mathrm{V}}_0\mathrm{v}/\mathrm{s}\nu$ is linear. (B) The slope of ${\mathrm{V}}_0\mathrm{v}/\mathrm{s}\nu$ curve $=\frac{{\varphi }_0}{\mathrm{h}}$ (C) h constant is related to the slope of ${\mathrm{V}}_0\mathrm{v}/\mathrm{s}\nu$ line. (D) The value of electric charge of electron is not required to determine $h$ using the $V_0\mathrm{v}/\mathrm{s}\nu$ curve. (E) The work function can be estimated without knowing the value of $h$. Choose the correct answer from the options given below :