(a) If electron in the atom is replaced by a particle (muon)

(a) If electron in the atom is replaced by a particle (muon) having the same charge but mass about 200 times as that of the electron to form a muonic atom, how would: (i) the radius and (ii) the ground state energy of this be affected ?
(b) Calculate the wavelength of the first spectral linein the corresponding Lyman series of this atom.

(a) A munoic atom is the atom in which a negatively charged muon of mass about 200 me, revolves around a proton.
In Bohr’s atomic model,