Home
Class 11
PHYSICS
(A): A hollow shaft is found to be stron...

(A): A hollow shaft is found to be stronger than a solid shaft made of same material.
(R) : 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

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

Both (A) and (R) are false

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MECHANICAL PROPERTIES OF SOLIDS

    AAKASH SERIES|Exercise EXERCISE - 2 (YOUNG.S MODULUS)|33 Videos

  • MECHANICAL PROPERTIES OF SOLIDS

    AAKASH SERIES|Exercise EXERCISE - 2 (RIGIDITY MODULUS AND BULK MODULUS )|16 Videos

  • MECHANICAL PROPERTIES OF SOLIDS

    AAKASH SERIES|Exercise EXERCISE IB (ASSERTION (A) AND REASON ( R) TYPE QUESTIONS (STRESS; STRAIN ; ELASTICITY; YOUNGS MODULUS))|26 Videos

  • MECHANICAL PROPERTIES OF FLUIDS

    AAKASH SERIES|Exercise EXERCISE-3|43 Videos

  • MOTION IN A PLANE

    AAKASH SERIES|Exercise Practice Exercise|84 Videos

Similar Questions

Explore conceptually related problems

A large steel wheel is to be fitted on to a shaft of the same material. At 27 ^(@) C , the outer diameter of the shaft is 8.70 cm and the diameter of the central hole in the wheel is 8.69 cm. The shaft is cooled using dry Icel. At what temperature of the shaft does the wheel slip on the shaft? Assume coefficient of linear expansion of the steel to be constant over the required temperature range: alpha_("steel ") = 1.20 xx 10^(-5) K^(-1) .

A solid sphere and a hollow sphere of same material have same mass. When they are heated by 50^(@)C , increase in volume of solid sphere is 5 c.c. The expansion of hollow sphere is