The average number of photons emitted per second by a laser of power 6.6 \times 10^{-3} {W} producing a light of wavelength 600 {nm} is (Planck's constant, {h}=6.6 \times 10^{-34} {J} {s} )

AP EAPCET 07-Jul-2022 Shift 1 Paper

Section: Physics

Question : 116 of 160

Marks: +1, -0

The average number of photons emitted per second by a laser of power 6.6×10−3W producing a light of wavelength 600nm is (Planck's constant, h=6.6×10−34Js )

2×1016
3×1016
4×1016
3×1016

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