Practice Tip: Select any option to check your answer. Green indicates correct, Red indicates incorrect.
Test Your Knowledge with MCQs & PYQs
1.
Which of the following physical quantities is equivalent to the total path length covered by a moving body ?(RRB ALP PYQ)
- A.Displacement
- B.Distance
- C.Velocity
- D.Speed
Answer: Option B
2.
The density of mild steel is _______.(ISRO SAC Technician PYQ)
- A.7.8 gm/cm3
- B.2.7 gm/cm3
- C.19.3 gm/cm3
- D.1.4 gm/cm3
Answer: Option A
3.
Which of the following two quantities have the same dimensions ?(SSC CGL PYQ)
- A.Work and torque
- B.Power and moment of inertia
- C.Work and angular displacement
- D.Power and radius of circular motion
Answer: Option A
4.
One nautical mile is(Karnataka Police Constable PYQ)
- A.2.562 km
- B.1.852 km
- C.1.652 km
- D.0.852 km
Answer: Option B
5.
Calculate the power (in W) of an engine if it can perform 120 J of work in 3 seconds.(SSC CHSL PYQ)
- A.360
- B.80
- C.180
- D.40
Answer: Option D
Explanation:
Given data: work = 120 J
time = 3 s
we know Power = Work/Time
so power = 120/3 J/s (we know J/s = W)
so power = 40 W.
(In exam):
power = 120/3 = 40 W.
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