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

The number of photons emitted per second by a 60W source of monochromatic light of wavelength 663nm is

Find the number of photons emitted per second by a 25 W source of monochromatic light of wavelength 6000overset@ A .

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 )

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 )

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)

(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 photons emitted per second by a 25 W source of monochromatic light of wavelength 6000 oversetcircA .

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

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