Calculate the wave number of the first spectral line in the Lyman series of `He^(+)` spectrum

Explanation

For first line in Lyman series,
`n_(1) =" lower energy "= 1`
`n_(2)= "higher energy "= 2`
Wave number `(barv)` is given by the equation
`barv=z^(2)R_(H)((1)/(1^(2))-(1)/(2^(2)))=4xx109677xx(3)/(4)=329031cm^(-1)`
Wave number of first line in Lyman series of `He^(+)` is `3.29xx10^(5)cm^(-1)`