In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as
(a) If both assertion and reason are true and reason is the correct explanation of assertion.
(b) If both assertion and reason are true but reason is not the correct explanation of assertion.
(c ) If assertion is true but reason is false.
(d) If assertion and reason are false.
Q. Assertion: If length of a rod is doubled the breaking load remains unchanged.
Reason: Breaking load is equal to the elastic limit.

Answer

C

Explanation

Breaking load depends on the sea of cross section and is independent length of rod. Hence,
Breaking load`=` breaking stress`xx`cross sectional area.