In Davisson-Germer experiment, at accelerating voltage of 54 V, intensity of scattered electrons is maximum at an scattering angle of 50°. The appearance of the peak in a particular direction is due to

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constructive interference of electrons scattered from different layers of atoms of crystal

destructive interference of electrons scattered from different layers of atoms of crystal

constructive interference of electrons scattered by same atom of crystal

resonance caused by scattered electrons

answer is C.

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Detailed Solution

In Davisson-Germer experiment, peak appears when constructive interference occurs between electrons scattered from different layers of atoms of the crystal. When the accelerating voltage is 54 V and scattering angle is 50^o , the intensity becomes maximum.

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