Question

Assertion : Ratio of stress and strain is always constant for a substance .

Reason : This ratio is called modules of elasticity.

(a) If both Assertion and Reason are true and the Reason is correct explanation of the Assertion 

(b) If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

(c) If Assertion is true, but the Reason is false.

(d) If Assertion is false but the Reason is true.

Answer 1

Correct option (d) If Assertion is false but the Reason is true.

Explanation :

Assertion is not true as it is true only with in elastic limit.