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प्रश्न
Calculate the minimum wavelength of the spectral line present in Balmer series of hydrogen
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उत्तर
`1/lambda = R[1/n_1^2 - 1/n_2^2]`
`1/lambda = R [1/2^2 - 1/prop^2]`
`:. 1/lambda = R/4`
`lamda = 4/R`
`lambda = 4/(10.97 xx 10^6) = 0.37 xx 10^(-6)`
`lambda = 3700Å`
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