In a muonic atom, the electron is replaced by a negatively charged particle called a muon. The muon has the same charge as an electron, but its mass is 207 times the mass of an electron. Apply the Bohr model to a muonic hydrogen atom. 

(a) Calculate the radius of the orbit of the muon in the ground state, first excited state, and second exited state. 

(b) Calculate the energy of these states. 

(c) Determine the wavelength of the photon emitted when the muon undergoes a transition from the n = 3 to n = 1 state.