Question

Match the entries in Column-I with those in Column-II.

	Column - I		Column - II
a	Speed	1	cm
b	Acceleration	2	s
c	Displacement	3	$m{s}^{-1}$
d	Time	4	$km{h}^{-2}$

• A. a-2, b-1, c-4, d-3
• B. a-3, b-4, c-1, d-2
• C. a-4, b-2, c-3, d-1
• D. a-3, b-2, c-2, d-1

Answer 1

Answer: (B)

a-3, b-4, c-1, d-2

In a given table, Column-I has given Physical quantity and Column-II has given units.

Displacement: Minimum distance between two points and its C.G.S unit is $cm.$

Speed: It is defined as the ratio of distance over time and its S.I unit is $m/s.$

Time: It is defined as the duration in which all things happen and it unit is seconds (s).

Acceleration: it is equal to velocity over time and its S.I unit is $m/s^2$, its unit can also be written as $km{h}^{-2}$

So correct match is,

Column-I	Column-II
(a) Speed	(3) $m/s$
(b) Acceleration	(4) $km{h}^{-2}$
(c) Displacement	(1) $cm.$
(d) Time	(2) $s$