Which of the following are vector quantities?
(A) Displacement
(B) Time period
(C) Force
(D) Work done
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (A) and (C) only
A vector quantity has both magnitude and direction. A scalar quantity has magnitude only.
So displacement and force need a direction to be described, while time period and work done are fully given by a number.
Checking the statements
(A) Displacement — Correct. It is a distance in a stated direction, such as 5 km towards the north.
(B) Time period — Incorrect. It is only a number of seconds, with no direction; it is a scalar.
(C) Force — Correct. The effect of a force depends on the direction in which it acts.
(D) Work done — Incorrect. Work is the scalar product of force and displacement, so it is a scalar.