JEE Main 2022PhysicsNuclear PhysicsEasyMCQ

JEE Main 2022Nuclear Physics Question with Solution

JEE Main 2022 (29 Jun Shift 2)

Question

In the following nuclear reaction,
DαD1β-D2αD3γD4
Mass number of D is 182 and atomic number is 74 . Mass number and atomic number of D4 respectively will be

Choose an option

Show full solutionCorrect option: A
Correct answer
A174 and 71

Step-by-step explanation

Equivalent reaction can be written as DD4+2α+β-+γ

So, mass number of D4=mass number of D-2×4=182-8=174

Atomic number of D4=atomic number of D-2×2+1=74-4+1=71

The reaction is 

D74182αD172178β-D273178αD371174γD471174

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About this question

This is a previous-year question from JEE Main 2022, covering the Nuclear 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.