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The nuclear particles which are assumed to hold the nucleons together are

  • A.Electrons
  • B.Positrons
  • C.Neutrons
  • D.Mesons

Answer: D

Mesons are held to bind the nucleons together.

Yukawa proposed in 1935 that the strong nuclear force is carried by an exchange particle of intermediate mass; the pi-meson, or pion, was found in cosmic rays in 1947 and matched his prediction. In modern terms the pion exchange is the residual effect of the colour force between quarks.

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