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+2 votes
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in Physics by (130k points)

Obtain an expression for the frequency of radiation emitted when a hydrogen atom deexcites from level n to level (n−1). For large n, show that this frequency equals the classical frequency of revolution of the electron in the orbit.

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by (93.7k points)
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Best answer

It is given that a hydrogen atom de-excites from an upper level (n) to a lower level (n−1). 

We have the relation for energy (E1) of radiation at level n as:

Classical relation of frequency of revolution of an electron is given as:

Hence, the frequency of radiation emitted by the hydrogen atom is equal to its classical orbital frequency.

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