Question

in infra red region of the spectrum of h a line is obtained have wave no:3802cm inverse.calculate the wavelength and frequency​

Answer 1

Answer:

We know that ,

Frequency(v) can be calculated as follows:

   λv = c

   where λ = 3802 x 10-2 m

              c = 3 x 108 m/s

   Frequency, v = (3 x 108 m/s) / 3802 x 10-2m

                         = 7.89 x 106 s-1

Energy = hv

   where h = 6.626 x 10-34 J/s

Hence, energy of the photon

   =  6.626 x 10-34 J/s x 7.89 x 106 s-1

    =   52.279 x 10-28 J