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Calculate the wave number and wavelength of the first spectral line of Lyman series of hydrogen spectrum.

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Calculate the wave number and wavelength of the first spectral line of Lyman series of hydrogen spectrum. 

Rydberg constant R = 10.97 x 106 m-1

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8.2275 × 106 m-1 Wave number v̄ = 8.2275 × 106 m-1 Wavelength λ = 1/8.2275 x 106m 

= 121.5 × 10-9 m = 121.5 nm

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