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13 Dec 2019
A red laser pointer emits light at a wavelength of 635 nm. If the laser emits 7.5 X 10^(-4) of energy per second in the form of visible radtion, how many photons per second are emitted from the laser?
I know the answer, I would just like a step by step explanation so I can learn how to do it.
A red laser pointer emits light at a wavelength of 635 nm. If the laser emits 7.5 X 10^(-4) of energy per second in the form of visible radtion, how many photons per second are emitted from the laser?
I know the answer, I would just like a step by step explanation so I can learn how to do it.
Nelly StrackeLv2
17 Dec 2019