Energy levels A, B and C of a certain atom correspond to increasing values of energy i.e., $ E_A

Question

Energy levels A, B and C of a certain atom correspond to increasing values of energy i.e., $E_A < E_B < E_C$ . If $\lambda_1, \lambda_2$ and $\lambda_3$ are wavelengths of radiations corresponding to transitions C to B, B to A and C to A respectively, which of the following relations is correct?

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

$\lambda_3 = \lambda_1 \lambda_2$

Accepted Answer

$ \lambda_3 = (\lambda_1 \lambda_2)/(\lambda_1 + \lambda_2) $

Answer

$ \lambda_3 = \lambda_1 + \lambda_2 $

Answer

$ \lambda_1 + \lambda_2 + \lambda_3 = 0 $

Answer

$ \lambda_3 = \lambda_1 \lambda_2 $

AIPMT PRELIMS 2005 Physics Energy Levels and Transitions MCQ Question

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