Minimum excitation potential of Bohr's first orbit hydrogen atom is

Options

A. 3.4V
B. 6.8V
C. 10.2V
D. 13.6V

Answer

C

Explanation

For minimum excitation energy, it is taken from the first to second orbit .
`therefore E=E_2-E_1 = 10.2 eV`
`therefore` Excitation potential = 10.2 V