JEE Main 2010 — Dual Nature of Matter Question with Solution

Statement-1 : When ultraviolet light is incident on a photocell, its stopping potential is $V_0$ and the maximum kinetic energy of the photoelectrons is ${\mathrm{K}}_{\max }$. When the ultraviolet light is replaced by $\mathrm{X}-$ rays, both ${\mathrm{V}}_0$ and ${\mathrm{K}}_{\max }$ increase. Statement-2 : Photoelectrons are emitted with speeds ranging from zero to a maximum value because of the range of frequencies present in the incident light. Of the four choices given after the statements, choose the one that best describes the two statements.