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NEET2011PhysicsNuclear PhysicsActual

A radioactive nucleus of mass M emits a photon of frequency v and the nucleus recoils. The recoil energy will be

Options

  1. Ah^2 v^2 / 2 M c^2
  2. Bzero
  3. Ch ~V
  4. DM c^2-h v

Correct answer

A. h^2 v^2 / 2 M c^2

Step-by-step solution

Momentum of a photon p= h v c Hence, Recoil energy E= p^2 2 M aligned & E= ( h v c )^2 2 M & or E= h^2 v^2 2 M c^2 & aligned

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