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The energy of an electron in an excited ...

The energy of an electron in an excited hydrogen atom is `- 3.4 e V`. Calculate the angular momentum . Given : Rydbrg's `R = 1.09737 xx 10^(-7) m^(-1)`. Plank's constant `h = 6.626176 xx 10^(-34) J - s`, speed of light`c = 3 xx 10^(8) m s^(-1).

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The correct Answer is:
`[2.11 xx 10^(-34)Js]`
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