How many photons are emitted per second by a 5mW laser source operating at 632.8nm?

How many photons are emitted per second by a 5m W laser source operating at 632.8nm?

How many photons are emitted per second by a 5 mW laser source operating at 632.8 nm?

How many photons are emitted by a laser source of 5 xx 10^(-3) W operating at 632.2 nm in 2 second (h = 6.63 xx 10^(-34)Js) ?

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

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 62W source of monochromatic light of wavelength 4800 A^(@) is

Find the number of photons emitted per second by a MW transmitter of 10 kW power emitting radiowaves of wavelength 500 m .

(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.