1.

An electron collides with a fixed hydrogen atom in its ground state. Hydrogen atom gets excited and the colliding electron loses all its kinetic energy. Consequently the hydrogen atom may emit a photon corresponding to the largest wavelength of the Balmer series. The K.E. of colliding electron will be

Answer»

10.2 eV
1.9 eV
12.1 eV
13.6 eV

Answer :B


Discussion

No Comment Found

Related InterviewSolutions