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)`?

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 5mW laser source operating at 632.8nm?

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

How many photons are emitted per second by a 5 m 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 per second by a 5 mW laser operating at 620 nm ?

A monochromatic source of light emits photons of frequency 6 xx 10^(14 )Hz . The power emitted by the source is 8 x 10^(-3)W. Calculate the number of photons emitted per second. (Take h = 6.63 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)

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)