A certain laser outputs pure green light (photon energy 2.5 eV) with power 500 milliwatts (0.5 watts). How many photons per second does this laser emit?
not exactly sure, I know that Watts are equal to Jouls/sec
and that the electronic energy of a hydrogen atom is -13.6eV/N^2
The Attempt at a Solution
can someone run through this with me and give me a good explanation? do i convert .5 watts to eV and then divide that number by 2.5 eV?
3.121e+18(eV)/2.5 = 2.348e18?