Pure Green Laser
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physics help... Light emission and photons and such?
A certain laser outputs pure green light (photon energy 2.5 eV) with power 950 milliwatts (0.95 watts). How many photons per second does this laser emit?
_______ photons
Hi Sean
You need to know that Watts are Joules per second. Also, convert 2.5eV/photon to Joules/photon. Divide Joules/second by Joules/photon to get photons/second.
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