maximum shear stress in the shaft

Question

A solid shaft of diameter, d and length, L is fixed at both the end. A torque, To is applied at a distance, L/4 from the left end as shown in the figure given below. 

 

The maximum shear stress in the shaft is

(a)                     (b)

(c)                        (d)

Answer 1

Above is the maximum shear stress induced in the shaft