A ruby laser emits
light at wave length
694nm. energy released
ina pulse in 150mj.
How many Photons
are in each pulse?
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A pulsed laser emits light at a wavelength of 694.4 nm. The pulse duration is 12 ps, and the energy per pulse is 0.150 J. (a) What is the length of the pulse? (b) How many photons are emitted in each pulse?
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