A Laser light of wavelength 600nm is used to weld retina detachment. If a Laser pulse of width 60ms and 0.5kW is used the

Question

A Laser light of wavelength 600nm is used to weld retina detachment. If a Laser pulse of width 60ms and 0.5kW is used the approximate number of photons in the pulse are:
A. 10^20
B. 10^18
C. 10^22
D. 10^19

Kunduz · Accepted Answer

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