In Davisson-Germer experiment, at acclerating voltage of 54 V, intensity of scattered electrons is maximum at a scattering angle of 50°. The appearance of the peak in a particular direction is due to
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a
resonance caused by scattered electrons
b
destructive interference of electrons scattered from different layeres of atoms of crystal
c
constructive interference of electrons scattered from different layers of atoms of crystal
d
constructive interference of electrons scattered by same atom of crystal
answer is C.
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Detailed Solution
The constructive interference of electrons scattered from different layers of the regularly spaced atoms of the crystals.