1.

If the minimum wavelength of Balmer series is lamda_(1) and the maximum wavelength of Lyman series is lamda_(2), then ......

Answer»

`lamda_(2)=3lamda_(1)`
`lamda_(1)=3lamda_(2)`
`lamda_(1)=4lamda_(2)`
`lamda_(2)=4lamda_(1)`

Solution :For minimum WAVELENGTH of Balmer series `n=oo`
`(1)/(lamda_(1))=R[(1)/(2^(2))-0]`
`:.lamda_(1)=(4)/(R)"".........(1)`
For maximum wavelength of Lyman series n = 2
`:.(1)/(lamda_(2))=R[(1)/(1^(1))-(1)/(2^(2))]=R[(1)/(1)-(1)/(4)]=R[(3)/(4)]`
`:.lamda_(2)=(4)/(3R)""......(2)`
`:.(lamda_(1))/(lamda_(2))=(4XX)/(R)xx(3R)/(4)=3"":.lamda_(1)=3lamda_(2)`


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