Question

Match the contents of column (I) with contents of the column (II).

(i) Unit of mass	(a) Metre
(ii) Pendulum of clock	(b) Cicular motion
(iii) Point on the blade of a rotating fan	(c) kilogram
(iv) S.I. unit of length	(d) Periodic motion

• A. (I)-a (II)-b (III)-c (IV)-d
• B. (I)-c (II)-d (III)-b (IV)-a
• C. (I)-c (II)-b (III)-d (IV)-a
• D. (I)-b (II)-d (III)-c (IV)-a

Answer 1

The correct option is B

(I)-c (II)-d (III)-b (IV)-a

SI unit of mass and length are kilogram and meter respectively. The pendulum of the clock repeats its motion at a fixed interval of time. This type of motion is known as periodic motion. The point on the blade of the fan undergoes circular motion.