A solid circular beam with radius of 0.25 m and length of 2 m is subjected to a twisting moment of 20 kNm

Q. A solid circular beam with radius of 0.25 m and length of 2 m is subjected to a twisting moment of 20 kNm about the z-axis at the free end, which is the only load acting as shown in the figure. The shear stress component 𝑟_𝑥𝑦 at Point ‘M’ in the cross-section of the beam at a distance of 1 m from the fixed end is

(A) 0.0 MPa                 (B) 0.51 MPa              (C) 0.815 MPa           (D) 2.0 MPa

Ans: 0.0 MPa