AP EAPCET Medical 20 May 2025 Shift 2 Paper

In a photoelectric experiment, when the wavelength of light incident on a metal is λ, the maximum kinetic energy of the emitted photoelectron is E . When the wavelength of incident light is ‌

λ

3

, the maximum kinetic energy of the emitted photoelectron becomes 4E. The work function of the metal is