Online Physics MCQs Test Set 4

This (Multiple Choice Questions-4) is a quiz only for self testing. Before start, you should sure that you know answer of each questions. There are 21 MCQs questions in this quiz. You should attempt all questions for your knowledge. So, lets start!

1. Parsec is a unit of

(A) Distance
(B) Intensity of light
(C) Time
(D) Force

... Answer is (A)
Parsec is a unit of distance.

2. How many watt is in one horse power (HP)?

(A) 1000
(B) 748
(C) 746
(D) 750

... Answer is (c)
NA

3. Which of the following device is used for discovering the location of lost object in the sea?

(A) Compass
(B) Galvanometer
(C) SONAR
(D) Odometer

... Answer is (C)
SONAR is stand for SOund Navigation And Ranging.

4. Humidity of atmosphere is measured by

(A) Potentiometer
(B) Lactometer
(C) Hygrometer
(D) Hydrometer

... Answer is (C)
NA

5. Which of the following is used for measuring of atmospheric pressure?

(A) Barometer
(B) Hydrometer
(C) Nanometer
(D) Manometer

... Answer is (A)
Atmospheric pressure is measured by Barometer.

6. What is recorded by seismograph?

(A) Earthquake
(B) Heart beat
(C) Atmospheric pressure
(D) None of these

... Answer is (A)
NA

7. What is used in measuring of speed of light?

(A) Altimeter
(B) Luxmeter
(C) Anemometer
(D) Calorimeter

... Answer is (B)
Speed of light is measured by Luxmeter.

8. Which of the following will unchanged by changing in quantity of matter?

(A) Mass
(B) Volume
(C) Density
(D) Weight

... Answer is (C)
Density is a ratio of mass to volume.

9. Which of the following is known for atomic energy?

(A) A. P. J. Abdul Kalaam
(B) Homi Jahangir Bhabha
(C) Satish Dhawan
(D) C. V. Raman

... Answer is (B)
NA

10. Bar is a unit of

(A) Pressure
(B) Weight
(C) Strain
(D) Force

... Answer is (A)
Bar is a unit of pressure.

11. Who discovered television (TV)?

(A) J. L. Bayard
(B) Lorentz
(C) Marconi
(D) Blaze Pascale

... Answer is (A)
NA

12. What is the SI unit of temperature?

(A) Degree Celsius (°C)
(B) Kelvin (K)
(C) Fahrenheit (F)
(D) Calorie (Cal)

... Answer is (B)
NA

13. Who discovered the principle of black hole?

(A) S. Chandrashekhar
(B) Hargovind Khurana
(C) C. V. Raman
(D) Ramanujan

... Answer is (A)
NA

14. Who gave logarithmic table?

(A) Einstein
(B) John Napier
(C) Ramanujan
(D) Archimedes

... Answer is (B)
NA

15. What is the principle of washing machine?

(A) Dialysis
(B) Osmosis
(C) Centrifuge
(D) Diffusion

... Answer is (C)
NA

16. Who gave planetary motion?

(A) Kepler
(B) Aryabhatta
(C) Newton
(D) Galileo

... Answer is (A)
NA

17. Moment of inertia is dependent on the

(A) Momentum of the object
(B) Volume of the object
(C) Velocity of yhe object
(D) Mass of the object

... Answer is (D)
NA

18. Path of projectile is a

(A) Simple curve
(B) Parabolic
(C) Circular
(D) Hyperbolic

... Answer is (B)
NA

19. Kilowatt-hour is a unit of

(A) Energy
(B) Impulse
(C) Power
(D) Force

... Answer is (A)
NA

20. A plane mirror has

(A) Zero power
(B) Infinity power
(C) Both
(D) None of these

... Answer is (A)
NA

21. Dynamo is a device which converts a

(A) Chemical energy into electric energy
(B) Electric energy into mechanical energy
(C) Mechanical energy into electric energy
(D) None of the above

... Answer is (C)
Dynamo is a device which converts a mechanical energy into electric energy.

22. The purpose of choke in tube light is

(A) Induce high voltage
(B) Induce low resistance
(C) Induce high
(D) Induce low voltage

... Answer is (A)
NA

23. Skating on ice is possible because

(A) the surface of ice is smooth
(B) ice is cold
(C) the pressure on the ice due to skate, melts the ice by lowering its melting point forming a thin film of water
(D) the pressure on the ice due to skate, raises its melting point

... Answer is (C)
NA

24. Pieces of camphor placed on water move about rapidly. This is because of

(A) diffusion
(B) viscosity
(C) surface tension
(D) capillarity

... Answer is (C)
NA

25. If lift is going up with acceleration, the apparent weight of a body is

(A) may be more or less than true weight
(B) more than the true weight
(C) less than the true weight
(D) equal to the true weight

... Answer is (B)
NA

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