A hydrogen atom is in an excited state of principle quantum number n. It emits a photon of wavelength λ when it returns to the ground state. The value of n is

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λR(λR−1)

λ(R−1)λR

λRλR−1

λ(R−1)

answer is C.

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Detailed Solution

hcλ=Rhc1−1/n2 or n=λRλR−1

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