Fundamentholfundamenthol
JEE Main2019Physics
Q.

The electron in a hydrogen atom first jumps from the third excited state to the second excited state and subsequently to the first excited state. The ratio of the respective wavelengths, 1 /2 , of the photons emitted in this process is 

  1. A

    7/5 

  2. B

    27/5    

  3. C

    9/7

  4. D

    20/7 

Solution

Practice more Physics

Concept-wise practice with instant solutions on Fundamenthol.

Start practicing →