Question

Calculate the minimum wavelength of the spectral line present in Balmer series of hydrogen

Answer 1

`1/lambda = R[1/n_1^2 - 1/n_2^2]`

`1/lambda = R [1/2^2 - 1/prop^2]`

`:. 1/lambda = R/4`

`lamda = 4/R`

`lambda = 4/(10.97 xx 10^6) = 0.37 xx 10^(-6)`

`lambda = 3700Å`