Question

6. What is the wavelength of the light emitted when the electron in a hydrogen atom undergoes transition from the energy level with n = 4 to energy level n = 2? What is the colour corresponding to this wavelength(nm) ? (Given RH = 109677 cm-1)​

Answer 1

The expression for the wavelength of radiation is,

m=486nm.

The line belongs to bluish green colour.