Thread: Rydberg

Hello Im studying for a quiz and I have a practise problem and I have a problem

Calculate the wavelength in nanometers of the spectral line in the visible specttrum of hydrogen for which n(1)=2 and n(2)=3

1/ /\ = 109678(1/4-1/9)
1/ /\ = 109678 (.13888)
1/ /\ = 15233
/\= 1/ 15233
/\=6.565 E-5 cm

Ok thats as far as I got but I cant convert it to match the nano meters they gave as an answer

the answer is 656.5 nm

Never mind, I was overthinking it sorry