Energy levels `A, B, C` of a certain atom corresponding to increasing values of energy i.e., `E_(A) lt E_(B) lt E_(C)`. If `lambda_(1), lambda_(2), lambda_(3)` are the wavelengths of radiations correspnding to the transitions `C` to `B, B` to `A` and `C` to `A` respectively, which o fthe following statements is correct?

Options

A. `lambda_(3)=lambda_(1)+lambda_(2)`
B. `lambda_(3)=(lambda_(1)lambda_(2))/(lambda_(1)+lambda_(2)`
C. `lambda_(1)+lambda_(2)+lambda_(3=0`
D. `3lambda_(2)=lambda_(3)+2lambda_(2)`

Answer

B

Explanation

`1/lambda_(3)=1/lambda_(1)+1/lambda_(2) Rightarrowlambda_(3)=?`