Question

Assertion (A) : A hollow circular shaft has more power transmitting capacity than a solid shaft of same material and same weight per unit length.

Reason(R): In a circular shaft, shear stress developed at a point due to torsion is propotional to its radial distance from the centre of the shaft.

• A. both A and R are true and R is the correct explanation A
• B. both A and R are true but R is not a correct explanation of A
• C. A is true but R is false
• D. A is false but R is true

Answer 1

The correct option is B both A and R are true but R is not a correct explanation of A

both A and R are true but R is not a correct explanation of A