Question bank/JEE Main/Physics

Consider two black bodies A and B. The surface temperature
of black body A is twice that of B. The wavelength corresponding to
maximum spectral radiancy for bodies A and B are λ_A and λ_B
respectively. When radiations of wavelength λ_A is incident on a
metallic surface the kinetic energy of fastest photoelectron is K_1
and when radiations of wavelength λ_B is incident on the same metallic
surface the kinetic energy of fastest photoelectron is K_2. The work
function of the metal is

Your answerCheck answer

Show answer and solution▾

D

Source: Grass-G / P-02 Physics Paper-02_Update.docx