Question

I. Long Answer Type Questions :
What do you mean by dual nature of electron? Derive de Broglie equation. How was
the dual nature of moving electrons experimentally verified?
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Answer 1

Answer:

In 1924, the French physicist, Louis de Broglie suggested that if light has electron, behaves both as a material particle and as a wave. ... According to this theory, small particles like electrons when in motion possess wave properties.

Derivation:-

(1/2) mv2 = eV; m2V2 = 2eVm

                 mv =  √2eVm = P;λ = h/√2eVm

Thus h/mv = (2πr/n) or mvr = (nh/2π)

Explanation: