Find the number of photons emitted per second by a 25 watt source of monochromatic light of wavelength `6000Å`.

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 .

Find the number of photons emitted per second by a 40 W source of monochromatic light of wavelength 6000Å . What is the photoelectric current assuming 5% effeciency of photoelectric effect? Given h=6.62xx10^(-34)Js and c=3xx10^(8) ms^(-1),e=1.6xx10^(-19)C

(a) Calculate the momentum of a photon of light of wavelength 500 nm. (b) Find the number of photons emitted per second by a 25 W sourse of monochromatic light of wave length 600 nm. (c) How many photons per second does a one watt bulb emit if its efficiency is 10% and the wavelength of light emitted is 500 nm? (d) Monochromatic light of wavelength 300 nm is incident normally on a surface of area 4 cm^(2) . If the intensity of light is 150 m W//m^(2) , determine the rate at which photons strike the surface.

Find the number of electrons emitted per second by a 24 W source of monochromatic light of wavelength 6600 Å , assuming 3% efficiency for photoelectric effect (take h = 6.6 xx10^(-34) Js)

The number of photons emitted per second by a 62W source of monochromatic light of wavelength 4800 A^(@) is

Find the number of electrons emitted per second by a 24W source of monochromatic light of wavelength 6600 Å , assuming 3 % efficiency for photoelectric effect (take h= 6.6 xx 10^(-34)Js)

The number of photons emitted per second by a 60 W source of monochromatic light of wavelength 663 nm is: (h=6.63xx10^(-34)Js )

Find the number of emitted per minute by a 25W source of monochromatic light of wavelength 5000Å. Use h=6.63xx10^(-34)Js .

The number of photons per second on an average emitted by the souce of monochromatic light of wavelength 600 nm when it delivers the power ofd 3.3 x 10^-3 watt will be