Question

The wavelength of emission is 6000 Å and coefficient of spontaneous emission is 10^6/s. Determined the coefficient for the stimulated emission.

Answer 1

Explanation:

Given The wavelength of emission is 6000 Å and coefficient of spontaneous emission is 10^6/s. Determine the coefficient for the stimulated emission

• We need to find the coefficient for the stimulated emission.
• So coefficient of stimulated emission will be
•                                                          B 21 = c^3 A 21 / 8 π h v^3
•                     So we have A 21 = 1/τ and λ^3 = c^3 / v^3
•                     So B 21 = λ^3 / 8 π h τ
•         = (6000 x 10^-10)^3 m^3 / 8 x 3.14 x 6.626 x 10^-34 Js x 10^-6
•              = 216 x 10^9 x 10^-30 m^3 / 166.44512 x 10^-40 Js^2
•                                     = 1.29 x 10^19 m/kg

Reference link will be

https://brainly.in/question/35754001