Question

Calculate the energy of the first line in the Lyman series for the hydrogen atom, which arises from a transition from n=2 to n= 1. What is the wavelength of the radiation emitted? In what region of the electromagnetic spectrum does it fall?

Answer 1

Answer:This may help you

Explanation:

From Rydberg's equation,

v= 1/λ=R H {1/n^2 1-1/n^2 2}

For the second line of Balmer series of hydrogen spectrum, n 1=2 and n 2=4.

v=R H {1/2^2-1/4^2}

1/λ=R H {3/16}

∴λ= 16/3R=972nm