Find the number of photons emitted per second by a 25 W source of monochromatic
Channel: Doubtnut
Date: 2021-11-08

Find the number of photons emitted per second by a 25 W source of monochromatic light of wavelength `6600 Å`. What is the photoelectric current assuming 3% efficiency for photoelectric effect. Given `h = 6.6 xx 10^(-34) Js`.