Calculate radiation from n = 3 t o n = 2 i n a hydrogen atom.

Explanation

In hydrogen spectrum , the spectral lines are expressed in term of wave num ber obey the following formula. Wave numer,
`barv=R_(H)(1)/(n_(1)^(2))-(1)/(n_(2)^(2))`
`bar=109677 cm^(-1)((1)/(2^(2))-(1)/(3^(2)))`
`barv=109677 xx5/36=1523.9 cm^(-1)`
`barv=(1)/(lambda)`