A monochromatic beam of neutrons

PHYSICS · Multi-part · CBSE · Physics · Dual Nature of Radiation and Matter · Dual Nature of Radiation and Matter

Problem

A monochromatic beam of neutrons, each of kinetic energy 0.025 eV0.025\,\text{eV}, is incident on a crystal whose inter-planar spacing is 0.18 nm0.18\,\text{nm}. (a) Calculate the de Broglie wavelength of the neutrons. (b) Compare the value obtained in part (a) with the given inter-planar spacing and state, with reason, whether a strong diffraction pattern is expected.

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