Transition between three energy levels in a particular atom give rise to three Spectral line of wavelength , in increasing magnitudes. `lambda_(1), lambda_(2)` and `lambda_(3)`. Which one of the following equations correctly relates `lambda_(1), lambda_(2)` and `lambda_(3)`?

Options

A. `lambda_(1)=lambda_(2)-lambda_(3)`
B. `lambda_(1)=lambda_(3)-lambda_(2)`
C. `(1)/(lambda_(1))=(1)/(lambda_(2))+(1)/(lambda_(3))`
D. `(1)/(lambda_(2))=(1)/(lambda_(3))+(1)/(lambda_(1))`

Answer

C