question_answer

The diagram shows the energy levels for an electron in a certain atom. Which transition shown represents the emission of a photon with the most energy?     AIEEE  Solved  Paper-2005

A) III      

B)                        IV           

C)                        I              

D)        II

Correct Answer: A

Solution :

Energy involved in transition is given by                 and Thus,transition gives highest value of energy. I transition represents the absorption of energy.