Q73 / 90 · JEE Main 2024 (08 Apr Shift 2) · Physics

If $M_o$ is the mass of isotope ${ }_5^{12} B, M_P$ and $M_n$ are the masses of proton and neutron, then nuclear binding energy of isotope is :

  • A
    $\left(M_o-5 M_p\right) C^2$
  • Correct answer
    B
    $\left(5 M_p+7 M_n-M_o\right) C^2$
  • C
    $\left(M_0-12 M_n\right) C^2$
  • D
    $\left(M_o-5 M_p-7 M_n\right) C^2$

Solution

$\begin{aligned} & \text { B.E. }=\Delta m C^2 \\ & \left(5 M_p+7 M_n-M_o\right) C^2\end{aligned}$

Hence, the correct answer is option: 'B'.

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