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JEE MAIN 2026
23-01-26 S2
Question
Which of the following pair of nuclei are isobars of the element?
Select the correct option:
A
${ }_1^2 \mathrm{H}$ and ${ }_1^3 \mathrm{H}$
B
${ }_{92}^{236} \mathrm{U}$ and ${ }_{92}^{238} \mathrm{U}$
C
${ }_{80}^{198} \mathrm{Hg}$ and ${ }_{79}^{197} \mathrm{Au}$
D
${ }_1^3 \mathrm{H}$ and ${ }_2^3 \mathrm{He}$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
Isobars are nuclei that have the same mass number ${ }_1^3 \mathrm{H} \&{ }_2^3 \mathrm{He}$ have same mass number.
Question Tags
JEE Main
Physics
Easy
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