Nitrogen laser produces radiation at a wavelength of 337.1 nm. If the number of photons emitted is $$5.6 \times 10^{24}$$, calculate the power of this laser.

Asked by Abhisek | 1 year ago |  77

##### Solution :-

Power of laser = Energy with which it emits photons

Power $$=E=\dfrac{Nhc}{\lambda }$$

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):

$$=3.33\times 10^{6}J$$

Hence, the power of the laser is $$3.33\times 10^{6}J$$

Answered by Pragya Singh | 1 year ago

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