Which of the following particle is responsible for nuclear force?

  1. Positrons
  2. Mesons
  3. Neutrons
  4. None of these

Answer (Detailed Solution Below)

Option 2 : Mesons
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Detailed Solution

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CONCEPT:

Nuclear force:

  • Forces that keep the nucleons bound in the nucleus are called nuclear forces.
  • Characteristics of the nuclear force:
    1. Nuclear forces are short-range forces. These do not exist at large distances greater than 10-15 m.
    2. Nuclear forces are the strongest forces in nature.
    3. These are attractive force and causes the stability of the nucleus.
    4. These forces are charge-independent.
    5. Nuclear forces are non-central forces.


EXPLANATION:

  • According to scientist Yukawa, the nuclear force between the two nucleons is the result of the exchange of particles called mesons between the nucleons. Hence, option 2 is correct.
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