Home
Class 11
PHYSICS
(A): If same work is done on identical s...

(A): If same work is done on identical springs of steel and copper, steel spring is less elongated.
(R) : Steel is less elastic than copper.

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:
D
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

Identical springs of steel and copper are equally stretched. The spring on which more work is to be done is

Steel is preferred for making springs over copper because

(A) : Steel is preferred than aluminium in heavy-duty machines (R) : Steel is more elastic than aluminium.

Two wires of same radius and length are subjected to the same load. One wire is of steel and the other is of copper. It the Young's modulus of steel is twice that of copper, the ratio of elastic energy stored per unit volume in steel to that of copper wire is

(A): Two identical solid balls, one of ivory and the other of wet-clay are dropped from the same height on the floor. Both the balls will rise to same height after bouncing. (R) : Ivory is less elastic than wet-clay.

(A) : The periodic time of a hard spring is less as compared to that of a soft spring. (R) : The periodic time depends upon the spring constant, which is large for hard spring.