Question

A light source rated as 16 Watt emits light of wavelength 310nm when this light falls completely on a metal having work function 2.5eV. Then find photocurrent if only 50% of photoelectrons are ejected?

Answer 1

Explanation:

light source of power 16 watts emits light of wavelength

. If all emitted photons are made to strike a metal plate of work function

then find out the magnetic of photo-current if

of incident photons eject photoelectron..,