Dual Nature of Radiation and Matter question for JEE Main (JEE Main 2021 (24 Feb, Shift 2)), with solution

Answer: (A) $10^{-3}$ nm

$$\lambda_{min} = \frac{hc}{eV} = \frac{1240\ \text{eV nm}}{1.24\times10^6\ \text{eV}} = 10^{-3}\ \text{nm}$$

Solution by Sreeraj P, M.Sc Physics