If energies of the two photons are in the ratio 3:2, their wave lengths will be in the ratio of:

Options

A. `9:4`
B. `2:3`
C. `1:2`
D. `3:2`

Answer

B

Explanation

The energies of two photons are in the ratio 3:2 ,their wavelengths will be in the ratio of
2:3, because `Eprop(1)/(lambda)` (According to Planck.s quantum theory)
`therefore (E_(1))/(E_(2))=(lambda_(2))/(lambda_(1))`
So,`lambda_(1):lambda_(2)=2:3`