Question

The ratio of maximum to minimum wavelength in lyman series is

Answer 1

Put n2=infinity in Rydbergs formula and solve with

Lyman(n1=1)

Balmer(n1=2)

You will get 2 equations

Solve and get the answer:)

Just like this

I hope I got it right.

P.S. I’ve assumed you’re talking Hydrogen here.