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NEETPhysicsDual Nature of Matter

A neutron beam of energy E scatters from atoms on a surface with a spacing d = 0.1nm. The first maximum of intensity in the reflected beam occurs at θ = 30°. What is the kinetic energy E of the beam in eV?

Options

  1. A0.21 eV
  2. B0.42 eV
  3. C0.63 eV
  4. D0.84 eV

Correct answer

A. 0.21 eV

Step-by-step solution

Correct Option is : (A) 0.21 eV

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