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When an electron jumps from 2nd stationa...

When an electron jumps from 2nd stationary orbit to 1st stationary orbit of hydrogen atom, the emitted energy is______ ev.

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`10.2 eV [E_(2) - E_(1) = (-13.6)/((2)^(2)) -[-(13.6)/((1)^(2))] = +3.4eV]`
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