The shaft shown if Figure ME-12 is made of bronze and steel and is fixed at both ends. It is subjected to a concentrated torsional at the junction. The steel segment is 1 meter long. Bronze Diam, O = 75 mm G- 35 GPa Steel Diam., O= 50 mm G = 83 GPa T = 80 MPa t = 60 MPa %3! Figure ME-12 Which of the following most nearly gives the angle of twist at the interface of the two materials, in degrees. O 184 O3.43 O 221 4.36