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The energy different between the first t...

The energy different between the first two levels of hydrogen atom is `10.2eV`. What is the corresponding energy difference for a single ionized helium atom?

A

`10.2 eV`

B

`20.4 eV`

C

`40.8 eV`

D

`81.6eV`

Text Solution

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The correct Answer is:
C
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