Emission transitions in the Paschen series end at orbit n = 3 and start from orbit n and can be represented as (Hz) [1/ – 1/]. Calculate the value of n if the transition is observed at 1285 nm. Find the region of the spectrum.

Emission transitions in the Paschen series end at orbit n = 3 and star

1.	Emission transitions in the Paschen series end at orbit n = 3 and start from orbit n and can be represented as (Hz) [1/ – 1/]. Calculate the value of n if the transition is observed at 1285 nm. Find the region of the spectrum.
Answer» Hydrogen molecules are PASSED into the electric discharge and emit ELECTROMAGNETIC radiations of discrete frequency.This radiation when passed through prism, an emerged BEAM of light is collected over photo graphic film called H-atomic spectrum and it contains various series. They are as follows.a) Lyman seriesb) Balmer seriesc) Paschen seriesd) BRACKET seriese) Pfund series.The spectrum LIES in the infra-red region.