JEE Main 2017PhysicsAtomic PhysicsEasyMCQ

JEE Main 2017Atomic Physics Question with Solution

JEE Main 2017 (02 Apr)

Question

Some energy levels of a molecule are shown in the figure. The ratio of the wavelengths r=λ1λ2, is given by:

Choose an option

Show full solutionCorrect option: A
Correct answer
Ar=13

Step-by-step explanation

The relation between wave length and energy of electron in nth orbit

λ1=-hcE
λ2=-3hcE
λ1λ2=13

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About this question

This is a previous-year question from JEE Main 2017, covering the Atomic Physics chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.