Which option best describes the truthfulness of the following statements? i)…
2023
Which option best describes the truthfulness of the following statements?
i) Physical quantities which have magnitude only are called scalar quantities.
ii) Physical quantities which have both magnitude and direction are called vector quantities.
iii) Two equal and opposite parallel forces acting at different points in a body constitute a couple.
- A.
i-True, ii-True, iii-True
- B.
i-False, ii-True, iii-True
- C.
i-True, ii-True, iii-False
- D.
i-True, ii-False, iii-True
Attempted by 178 students.
Show answer & explanation
Correct answer: A
Check each statement:
i) True: a scalar quantity has magnitude only.
ii) True: a vector quantity has both magnitude and direction.
iii) True: a couple is formed by two equal and opposite parallel forces acting at different points.
Answer: i-True, ii-True, iii-True