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Hydrogen atom in ground state is excited by a monochromatic radiation of $λ = 975 A^{o}$ . Number of spectral lines in the resulting spectrum emitted will be

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Correct option is C

1λ=RZ21n12-1n22 1975 x 10-10=1.097 x 107112-1n2; n=4no of spectral lines n(n-1)2=4(4-1)2=6

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Hydrogen atom in ground state is excited by a monochromatic radiation of λ=975 Ao. Number of spectral lines in the resulting spectrum emitted will be

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Hydrogen atom in ground state is excited by a monochromatic radiation of $λ = 975 A^{o}$ . Number of spectral lines in the resulting spectrum emitted will be