Q175 / 180 · COMEDK 2017 · Physics

Two nucleons are at a separation of one Fermi. Protons have a charge of $+1.6 \times 10^{-19} \mathrm{C}$. The net nuclear force between them is $F_{1}$, if both are neutrons, $F_{2}$ if both are protons and $F_{3}$ if one is proton and the other is neutron. Then,

  • A
    $F_{1}=F_{2}>F_{3}$
  • Correct answer
    B
    $F_{1}=F_{2}=F_{3}$
  • C
    $F_{1} < F_{2} < F_{3}$
  • D
    $F_{1}>F_{2}>F_{3}$

Solution

Since, nuclear force is independent of charge of the nucleons. Thus, nuclear force is same for any pair of two nucleons which are at same distance apart. Therefore, $F_{1}=F_{2}=F_{3}$

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

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