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Question

According to de Broglie's concept, the circumference of each electron of which must be equal to:
  1. diameter of a electron.
  2. the wave length of an electron.
  3. the integral number of electron wavelength.
  4. plancks constant divided by 2.

A
diameter of a electron.
B
the wave length of an electron.
C
plancks constant divided by 2.
D
the integral number of electron wavelength.
Solution
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According to de Broglie's concept
2πr=nλ
n is integer.

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