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Manipal MET2012PhysicsDual Nature of Matter

An atom of mass M which is in the state of rest emits a photon of wavelength . As a result, the atom will deflect with the kinetic energy equal to ( h is Planck's constant)

Options

  1. Ah^2 M ^2
  2. B1 2 h^2 M ^2
  3. Ch M
  4. D1 2 h M

Correct answer

B. 1 2 h^2 M ^2

Step-by-step solution

Momentum of photon, p= h Kinetic energy of photon of mass M, K= p^2 2 M or K= h^2 2 M ^2

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