measurement and SI units - Category wise Question and Answer Practice Test with Solutions

Question : 16 [NDA]

If d denotes the distance covered by a car in time t and $S↖{→}$ denotes the displacement by the car during the same time, then :

a) d≥|$S↖{→}$|

b) d ≤ |$S↖{→}$|

c) d=|$S↖{→}$|only

d) d < |$S↖{→}$|

Question : 17 [BPSC (Pre) 1994]

One micron is equal to

a) 1/1000 mm

b) 1/10 mm

c) 1/100 mm

d) 1/10,000 mm

Question : 18 [UPPSC (GIC) 2010]

The unit of power is

a) Watt

b) Hertz

c) Volts

d) Neutrons

Question : 19 [UPPCS (Pre) 1997]

PARSEC is the unit of

a) Light intensity

b) Distance

c) Time

d) Magnetic force

Question : 20 [IAS Prelim]

Which of the following distance-time graph (x-t) represents one-dimensional uniform motion?

a)

b)

c)

d)