Question

Assertion : If the magnitude of displacement is zero, then it is not a vector quantity. Reason : A vector needs both magnitude and direction.
(a) Both A and R are true, and R is correct explanation of the assertion.
(b) Both A and R are true, but R is not the correct explanation of the assertion. (c) A is true, but R is false.
(d) A is false, but R is true.

Answer 1

Assertion is incorrect but Reason is correct

A physical quantity is said to be a vector quantity if it has both magnitude and direction. So the reason statement is correct. But the assertion statement is incorrect. If the magnitude of displacement is zero, even then the displacement is termed as a vector quantity.

Answer 2

Explanation:

Both A and R are true, and R is correct explanation of the assertion.