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Chemistry, 25.12.2020 15:30 karenaustin5
A red laser pointer emits light at a wavelength of 488 nm. If the laser emits 7.5 10–4 J of energy per second in the form of visible radiation, how many photons per second are emitted from the laser?
a)
4.1 10–19 photons/sec
b)
5.4 10–16 photons/sec
c)
8.9 1014 photons/sec
d)
1.8 1015 photons/sec
e)
2.5 1018 photons/sec
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A red laser pointer emits light at a wavelength of 488 nm. If the laser emits 7.5 10–4 J of energy...
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