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Davisson-Germer experiment demonstrated:
AX-ray emission
BPhotoelectric effect
CWave nature of electrons via diffraction by nickel crystal
DCompton scattering
Answer & Solution
Correct answer: C. Wave nature of electrons via diffraction by nickel crystal
Davisson and Germer (1927) directed electrons at Ni crystal; observed diffraction maxima at angles predicted by de Broglie's λ = h/p. Confirmed wave nature of electrons. Nobel Prize 1937.
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