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Question

In a hydrogen like atom, when an electron jumps from the M-shell to the L-shell, the wavelength of emitted radiation is λ. If an electron jumps from N-shell to the L-shell, the wavelength of emitted radiation will be?

A
2720λ
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B
1625λ
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C
2027λ
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D
2516λ
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Solution

The correct option is C 2027λ
For M L steel
1λ=K(122132)=K×536
for NL
1λ=K(122142)=K×316
λ=2027λ.

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