A monochromatic light source of intensity 5 m W emits `(8x10^15)` photons per second . This light
Channel: Doubtnut
Date: 2020-07-12

A monochromatic light source of intensity 5 m W emits `(8x10^15)` photons per second . This light ejects photoelectrons from a metal surface. The stopping potential for this setup is 2.0 V. Calculate the work function of the metal.