Physics Atomic and Nuclear Physics Atomic Structure MCQ (Single Correct)

The Bohr model of atoms

A
Assumes that the angular momentum of electrons is quantized.
B
Uses Einstein’s photoelectric equation.
C
Predicts continuous emission spectra for atoms.
D
Predicts the same emission spectra for all types of atoms.

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The correct answer is:
A

Bohr made a hypothesis that there are certain special state of motion called stationary state in which the electron may exist without radiating electromagnetic energy in these states according to Bohr, the angular momentum of electrons takes values that are integer multiples of h. in stationary states, the angular momentum of the electron may have magnitude h, 2h,3h….. but never such as h or h. this is called the quantization of angular momentum.

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