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What is the maximum wavelength for Balme...

What is the maximum wavelength for Balmer series in H atom.

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For maximum wave length of Balmer series
`n_(2)=3,n_(1)=2`
`(1)/(lamda)=R(1)^(2)[(1)/(4)-(1)/(9)]`
On solving `lamda=6566.4A^(@)`
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