AP EAPCET 7 Sep 2021 Shift 1 Paper

Question : 122 of 160

Marks: +1, -0

The frequency of radiation emitted, when an electron falls from n=3 to n=1. in a Hydrogen atom would be _______
(Given, ionisation energy of Hydrogen is 2.18×10−18J∕ atom and h=6.625×10−34J.s)