Q- 2.46: Nitrogen laser produces a radiation at a wavelength of 337.1 nm. If the number of photons emitted is 5.6 ×10^24, calculate the power of this laser.
Answer
Power of laser = Energy with which it emits photons
Power
Where,
N = number of photons emitted
h = Planck’s constant
c = velocity of radiation
λ = wavelength of radiation
Substituting the values in the given expression of Energy (E):
Answer
Power of laser = Energy with which it emits photons
Power
Where,
N = number of photons emitted
h = Planck’s constant
c = velocity of radiation
λ = wavelength of radiation
Substituting the values in the given expression of Energy (E):
Will this formula help to calculate the power of any other laser wavelength?
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