Monochromatic light of frequency `6.0xx10^(14)` Hz is produced by a laser. The power emitted is `2.0 xx10^(-3)` W(a) What is the energy of a photon in the light beam ? (b ) How many photons per second , on an average , are emitted by the source ?

Monochromatic light of frequency 6.0xx10^(14)Hz is produced by a laser. The power emitted is 2.0xx10^-3W , (a) What is the energy of a photon in the light beam? (b) How many photons per second, on the average, are emitted by the source? Given h=6.63xx10^(-34) Js

Monochromatic light of frequency 6.0xx10^(14)Hz is produced by a laser. The power emitted is 2.0xx10^-3W , (a) What is the energy of a photon in the light beam? (b) How many photons per second, on the average, are emitted by the source? Given h=6.63xx10^(-34) Js