Question

The binding energy of an electron in n^th orbit of the hydrogen atom is given by `"E"_"n" = 13.6/"n"^2 "eV."` The energy required to knock an electron from the second orbit in eV will be ____________.

पर्याय

• 10.2 eV

• 12.1 eV

• 13.6 eV

• 3.4 eV

Answer 1

The binding energy of an electron in n^th orbit of the hydrogen atom is given by `"E"_"n" = 13.6/"n"^2 "eV."` The energy required to knock an electron from the second orbit in eV will be 3.4 eV.

Explanation:

`"E" = 13.6/2^2 =3.4  "eV"`