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  • Nitrogen laser produces a radiation at a wavelength of 337.1 nm. If the number of 24 photons emitted is 5.6 times 10 to the power 24 , calculate the power of this laser.

2.46 Nitrogen laser produces a 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.

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The energy emitted by the nitrogen laser is:

E = Nh\nu = N\frac{hc}{\lambda} = \left ( 5.6\times10^{24} \right )\times\frac{(6.626\times10^{-34}Js)(3.0\times10^{8}m/s)}{337.1\times10^{-9}m}

     =3.3\times10^6J

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Divya Prakash Singh

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