A beam of rectangular cross-section (b x d) is subjected to a torque T. What is the maximum torsional stress induced in the beam ?(Where b < d, and is a constant)

A beam of rectangular cross-section (b x d) is subjected to a torque T

1.	A beam of rectangular cross-section (b x d) is subjected to a torque T. What is the maximum torsional stress induced in the beam ?(Where b < d, and is a constant)
A.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/23-1287-1.png">
B.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/23-1287-2.png">
C.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/23-1287-3.png">
D.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/23-1287-4.png">
Answer» B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/23-1287-2.png">