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A laser used to weld detached retinas emits light with a wavelength of 652{\rm nm} in pulses that are 20.0{\rm ms} in duration. The average power expended during each pulse is 0.600{\rm W} .

A) How much energy is in each pulse, in joules?

B) How much energy is in each pulse, in electron volts?

C) What is the energy of one photon in joules?

D) How many photons are in each pulse?

E) What is the energy of one photon in electron volts?

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Category:- Physics
Reference No.:- M9889623

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