Question

Nitrogen laser produces a radiation at a wavelength of 337.1 nm. If the number of photons emitted is 5.6x10

Answer 1

Answer:

Nitrogen laser produces a radiation at a wavelength of 337.1 nm. If the number of photons emitted is 5.6 × 1024, calculate the power of this laser. Hence, the power of the laser is 3.33 × 106 J.

Answer 2

Answer:

E = Nhv = Nhc/λ

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):

$= \frac{(5.6 \times 10 {}^{24} )(6.626 \times {10}^{ - 34 \: })(3 \times {10}^{8} )}{(337.1 \times {10}^{ - 9}) }$

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

 

Hence, we got the power of laser.

Hope you got it...