The radius of the first permitted 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 ($\mathrm{\mu }$–) [charge same as electron and mass 207 ${\mathrm{m}}_{\mathrm{e}}$], the first Bohr radius and ground state energy will be,

• A

  $2.56\times {10}^{-13}\mathrm{m},-13.6\mathrm{eV}$

• B

  $0.53\times {10}^{-13}\mathrm{m},-3.6\mathrm{eV}$

• C

  $25.6\times {10}^{-13}\mathrm{m},-2.8\mathrm{eV}$

• D

  $2.56\times {10}^{-13}\mathrm{m},-2.8\mathrm{keV}$