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Calculate the wavelength from the Balmer...

Calculate the wavelength from the Balmer formula when `n_(2)=3.`

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Verified by Experts

The correct Answer is:
656 nm
`bar(v) = R ((1)/(2^(2)) - (1)/(n_(2)^(2))) = 109677 ((1)/(2^(2)) - (1)/(3^(2))) cm^(-1) = 15232.9 cm^(-1)`
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