Question

a photon of 300nm is absorbed by a gas and then remits two photons .one re- emitted photon has wave length 496nm the wavelength of second re-emitted photon is​

Answer 1

Answer:

Given:

Wavelenghth of absorbed photon, λ = 300 nm

Wavelenghth of re-emitted photon, λ1 = 496 nm

Wavelenghth of re-emitted photon, λ2 = x nm

We know,

ETotal = E1 + E2

straight E space equals hc over straight lambda

hc over straight lambda subscript space equals hc over straight lambda subscript 1 plus hc over straight lambda subscript 2

1 over straight lambda space equals space 1 over straight lambda subscript 1 plus 1 over straight lambda subscript 2

1 over 300 equals 1 over 496 plus 1 over straight lambda subscript 2

1 over straight lambda subscript 2 space equals 1 over 300 minus 1 over 496

1 over straight lambda subscript 2 space equals 0.00131

straight lambda subscript 2 space equals 759.18 space nm

Wavelength of the other photon is 759.18 nm