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Bohr's Model of an Atom

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Question

Hello experts,I have a question
How does electron residing in a particular orbit does not lose or gain energy?
How is it possible,because energy is utilised in rotation,right?
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thank you

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Solution

Dear Student,
As per Bohr model of atom, each possible orbit in an atom has fixed energy. The energy of an electron is decided by its angular momentum mvr which is constant. So electron residing in a particular orbit does not lose or gain energy. The atom will only radiate energy when the electron jumps from one orbit to another.

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