Q179 / 180 · COMEDK 2017 · Physics

Bohr's atom model assumes

A
the nucleus is of infinite mass and is at rest
B
electrons in a quantised orbit will not radiate energy
C
mass of the electron remains constant
Correct answer
D
All of the above

Solution

Bohr assumed one of the postulates of Rutherford's atomic model. That is the mass of the nucleus is very large compared to that of the electrons and hence assumed to be infinite. Electrons in quantised orbit does not radiate energy. Mass of electron remains constant.

Hence, the correct answer is option: 'D'.

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