DeBroglie's idea that electrons are really waves was first tested by
(A) generating and detecting the waves.
(B) single slit diffraction.
(C) a two-slit interference experiment.
(D) scattering electrons from a crystal.
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What this question is about
DeBroglie's idea that electrons are really waves was first tested by
(A) generating and detecting the waves.
No. --- Electrons already are waves.
They do not need to be generated.
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DeBroglie's idea that electrons are really waves was first tested by
(B) single slit diffraction.
No. --- The slit needs to be really narrow
or the electrons need to be really slow.
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DeBroglie's idea that electrons are really waves was first tested by
(C) a two-slit interference experiment.
No. --- The slits need to be too close
together for the available electron energies.
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DeBroglie's idea that electrons are really waves was first tested by
(D) scattering electrons from a crystal.
Yes. --- Davisson & Germer scattered
electrons from a nickel crystal surface.
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