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What is the energy in eV requried to exc...

What is the energy in eV requried to excite the electron from n=1 to n=2 state in hydrogen atom? (n=principal quantum number)

A

13.6

B

3.4

C

`17.0`

D

10.2

Text Solution

Verified by Experts

The correct Answer is:
D
According to Bohr equation
`E_2-E_1=13.6(1/n_2^2-1/n_1^2)`
or , `DeltaE=13.6(1/n_1^2-1/n_2^2) =13.6 (1-1/4) =10.2 eV`
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