The radius of the first emitted Bohr orbit, for the electron, in a hydrogen atom equals 0.51 Å and its ground state energy equals -13.6 eV. If the electron in the hydrogen atom is replaced by muon `(mu^-)` [charge same as electron and mass 207 `m_e`], the first Bohr radius and ground state energy will be

Options

A. `2.46 × 10^-13 m, -13.6 keV`
B. `0.53 × 10^-13 m, -3.6 keV`
C. `24.6 × 10^-13 m,-2.8 keV`
D. `2.46 × 10^-13 m, -2.8 keV`

Answer

D