Energy levels A. B, C. of a certain atom correspoinds to increasing value fo enrgy i.e., E_A lt E_B lt E_C If ` lambda _1, lambda_2`, and ` lambda_3` are the wavelengths of radistions corresponding to the transitions ( C) to ` B, B ` to (A) and ( C) to (A) respectively wich fo the following wstatemnt is correct
.

Options

A. ` lambda_3 = lambda_1 + lambda_2`
B. `lambda_3 ( lambda_2 )/(lambda_1+lambda_2)`
C. `lambda+1+ lambda-02 + lambda_3 =0`
D. `lambda_3^2 = lambda_1^2+lambda_2^2`

Answer

B

Explanation

` E_(3) = E_(1) E_(2) or ( hc)/(lambda_(3)) = (hc)/(lambda_(1)) + (hc)/(lambda_(2))`.