Calculate the wavelength, in nanometers, of the spectral line produced when an electron in a hydrogen atom undergoes the transition from the energy level =3n=3 to the level =1.

Explanation:

The expression for energy is -

For transitions:

Also,

Where,  

h is Plank's constant having value

c is the speed of light having value

So,  

So,  

Given,

1 m = 10⁻⁹ nm

1= 26.17

2= 1.17

3=30.86

4=5.86

just took the assigment on edge