- #1
Antnorwe
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Hey. I have 2 questions I'm having a bit of trouble with, here they are:
Any help would be greatly appreciated :)
Cheers.
1. The average energy of the photons emitted by the light bulb in the visible region is 2 eV. Calculate the number of these photons received per square metre per second at this distance from the light bulb.
Distance = 2m
Intensity at this point = 0.095w/m(2)
2. Calculate the threshold wavelength for a metal surface which has a work function of 6.2 eV. (In relation to the Photoelectric Effect)
Any help would be greatly appreciated :)
Cheers.