Directions for: The questions consist of two statements each, printed as assertion and reason. While answering these questions you are required to choose any one of the following five responses A. If both the Assertion and the Reason are true and the Reason is a correct explanation of the Assertion. B. If both the Assertion and the Reason are true but the Reason is not a correct explanation of Assertion. C. If the Assertion is true but the Reason is false. D. If both the Assertion and the Reason are false. E. If Assertion is false but Reason is true.
Assertion: Stress is the internal force per unit area of a body. Reason: Rubber is more elastic than steel.A) A
B) B
C) C
D) D
E) E
Correct Answer: C
Solution :
The internal restoring force acting per unit area of cross-section of the deformed body is called stress. Also elasticity is the property of the material of a body by virtue of which it opposes any change in its size or shape. Greater the force required more elastic the body is. Hence, steel is more elastic than rubber.
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