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In the nth orbit, the energy of an elect...

In the nth orbit, the energy of an electron `E_(n)= -( 13.6)/(n^(2)) eV` for hydrogen atom. The energy rquired to take the electron from first orbit to second orbit will be

A

`10.2 eV`

B

12.1 eV

C

13.6 eV

D

3.4 eV

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The correct Answer is:
A
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