Two metallic cylinder made of same material and radii r and 2r are joined as shown in figure. If top end is ved and lower end of cylinder B is twisted by angle e, then angle of twist for cylinder A is (both cylinder have fixed and

Two metallic cylinder made of same material and radii r and 2r are joined as shown in figure. If top end is ved and lower end of cylinder B is twisted by angle Theta, then angle of twist for cylinder A is (both cylinder have fixed and

Two cylinders A and B of the same matieral have same length, their radii being in the ratio of 1:2 repectively. They are joined end to end as shown in figure. The upper end of A is rigidly fixed. The lower end of B is twised through an angle theta , the angle of twist of the cylinder A is:

Two cylinder A and B of radii r and 2r are soldered co-axially. The free end of A is clamped and the free end of B is twisted by an angle phi . Find twist at the junction taking the material of tow cylinders to be same and of equal length.

Two rods A and B of the same material and length have radii r_(1) and r_(2) respective. When they are rigidly fixed at one end and twisted by the same torque applied at the other end, the ratio [("the angle of twist at the end of A")/("the angle of twist at the end of B")] equal to

Two rods A and B of the same material and length have radii r_(1) and r_(2) respective. When they are rigidly fixed at one end and twisted by the same torque applied at the other end, the ratio [("the angle of twist at the end of A")/("the angle of twist at the end of B")] equal to

Two wires A and B of same length and of the same material have the respective radii r_(1) and r_(2) . Their one end is fixed with a rigid support, and at other end equal twisting couple is applied. Then the ratio of the angle of twist at the end of A and the angle of twist at the end of B will be

Assertion : A hollow shaft is found to be stronger than a solid shaft made of same material. Reason : The torque required to produce a given twist in hollow cylinder is greater than that required to twist a solid cylinder of same size and material.

Assertion : A hollow shaft is found to be stronger than a solid shaft made of same material. Reason : The torque required to produce a given twist in hollow cylinder is greater than that required to twist a solid cylinder of same size and material.