Question

Bohrs atomic model assumes :

A

the nucleus is of infinite mass and is at rest

B

electron in a quantized orbit will not radiate energy

C

mass of the electron remains constant

D

all of the above

Easy

Solution

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Correct option is D)

Bohr's Assumption :
( i )  Electron in atoms orbit the nucleus.
( ii ) Electron in a quantized orbit will not radiate energy.
( iii ) Electrons can only gain and lose energy by jumping from one allowed orbit to other.
He also 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

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