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Question

For the hydrogen atom, the energy of radiation emitted in the transition from 4th excited state to 2nd excited state, according to Bohr's theory is

A
0.567 eV
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B
0.667 eV
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C
0.967 eV
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D
1.267 eV
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Solution

The correct option is D 0.967 eV
Energy of nth state of Hydrogen atom, En=13.6n2 eV

Energy radiated during the transition, E=13.6(1n211n22) eV

4th excited state means n2=5 and 2nd excited state means n1=3
E=13.6(132152) eV
E=0.967 eV

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