Nitrogen lazer produces a radiation at a wavelength of 337.1nm. If the number of photons emitted is 5.6×10^25 per second. Calculate the power of this laser?

1 Answer
Jun 5, 2018

33.02\ "megawatts"

Explanation:

"P" = "Energy"/"Time"

color(white)("P") = ("nhc"/λ)/"t"

color(white)("P") = "nhc"/"λt"

color(white)("P") = (5.6 × 10^25 × 6.626 × 10^-34\ "J s" × 3 × 10^8\ "m/s")/(337.1 × 10^-9\ "m" × "1 s")

color(white)("P") = 33021892.6135\ "Watt"

color(white)("P") = 33.02\ "megawatts"