Physics MCQs

Physics Mcqs for the preparation of NTS, PPSC, SPSC, BPSC, KPSC, FPSC, OTS and other academic entry test and jobs tests.

1. The working principle of a washing machine is
(a) Centrifugation
(b) Dialysis
(c) Reverse osmosis
(d) Diffusion

2. Reserves of radioactive element which has been found in D.G. Khan area of Pakistan is
(a) Uranium
(b) Thorium
(c) Radium
(d) Plutonium

3. Who gave the theory which was based on the idea that all matter is made up of four basic substances: earth, water, air, and fire.
(a) Aristotle
(b) Archimedes
(c) Pascal
(d) Newton

4. What did J.J. Thomson use in order to measure the mass of the atom and its electric charge in 1897
(a) Alpha particles.
(b) Neutrons
(c) Cathode ray tube
(d) None of these

5. Which type of storage system uses mechanical energy to store energy
(a) Superconducting
(b) Pumped Hydroelectric
(c) Capacitors
(d) Flywheel

6. What is the source of electric energy in an artificial satellite
(a) Nuclear reactor
(b) A dynamo
(c) A Thermopylae
(d) Solar cells

7. Which gas is commonly used in balloons and airships
(a) Hydrogen
(b) Helium
(c) Carbon
(d) Nitrogen

8. Non-conventional source of energy best suited for Pakistan is
(a) Solar energy
(b) Wind energy
(c) Tidal wave energy
(d) Nuclear energy

9. Which of the following is a vector quantity
(a) Force
(b) Temperature
(c) Energy
(d) Momentum

10. Heavy water is
(a) Sea water
(b) D2O
(c) H2O2
(d) None of these

11. At what point the Centigrade and the Fahrenheit temperatures are the same
(a) 10 degree
(b) 0 degree
(c) -10 degree
(d) -40 degree

12. Speed of sound is maximum in
(a) Gas
(b) Liquid
(c) Same in all
(d) Solid

13. Which of the following light waves is outside the visible spectrum
(a) Violet
(b) Blue
(c) Yellow
(d) Ultraviolet

14. Which of the following is used in semiconductors
(a) Aluminium
(b) Copper
(c) Silicon
(d) None of these

15. A falling drop of rain water acquires the spherical shape due to
(a) Surface Tension
(b) Gravitational force
(c) Atmospheric pressure
(d) Viscosity

Physics Mcqs for the preparation of NTS, PPSC, SPSC, BPSC, KPSC, FPSC, OTS and other academic entry test and jobs tests.

16. Which is more elastic
(a) Steel
(b) Rubber
(c) Thread
(d) None of these

17. Who is credited with developing the idea of an isotope
(a) Frederick Soddy
(b) H. Moseley
(c) James Chadwick
(d) N. Bohr

18. A device used to detect heat radiations is known as
(a) Barometer
(b) Thermocouple
(c) Thermopylae
(d) Generator

19. Which of the following colors do not show photoelectric effect
(a) Blue
(b) Green
(c) Orange
(d) Violet

20. The energy of matter in motion is
(a) Potential Energy
(b) Projectile
(c) Kinetic Energy
(d) Resistance

21. The splitting of white light when passing through a glass prism is clue to
(a) Reflection
(b) Refraction
(c) Diffraction
(d) Interference

22. Which is used as a nuclear fuel in the sun
(a) Helium
(b) Hydrogen
(c) Uranium
(d) Alpha particles

23. What is emitted by the hot metal filament in a cathode ray tube
(a) Electron
(b) Proton
(c) Newton
(d) Yuton

24. Some lasers are referred to as being “cw.” What does “cw” mean
(a) Circular wave
(b) Constant white
(c) Continuous wave
(d) Clear white

25. Electro cardio graph is used to study
(a) Blood pressure
(b) Lungs
(c) Function of heart
(d) Liver

26. Which one is a mechanical wave
(a) Sound Wave
(b) Radio Wave
(c) Light Wave
(d) Infrared Wave

27. Who developed the concept of atomic number
(a) Frederick Soddy
(b) H. Moseley
(c) James Chadwick
(d) N. Bohr

28. Which material is the best absorber of infrared radiation
(a) Glass
(b) Wood
(c) Cotton
(d) Animal Fur

29. Describes the rate at which work is being done
(a) Potential Energy
(b) Power
(c) Efficiency
(d) Effort Force

30. Motion of artificial earth satellite around the earth is powered by
(a) Solar batteries
(b) Liquid fuel
(c) Atomic energy
(d) Thermal energy

Physics Mcqs for the preparation of NTS, PPSC, SPSC, BPSC, KPSC, FPSC, OTS and other academic entry test and jobs tests.

31. Good conductors have many loose bounds
(a) Atoms
(b) Protons
(c) Molecules
(d) Electrons

32. Which of the following is a physical change
(a) Boiling of Water
(b) Rusting of Iron
(c) Boiling of an Egg
(d) Burning of Candle

33. Which of the following is a good conductor of heat and electricity
(a) Diamond
(b) Anthracite
(c) Granite
(d) Graphite

34. The focal length of a convex lens is maximum for
(a) Blue
(b) Green
(c) Yellow
(d) Red

35. The fuse wire is generally made of
(a) Silver
(b) Copper
(c) Tin-lead alloy
(d) Silver & copper

36. Superconductivity is due to
(a) Electrons
(b) Protons
(c) Pair of electrons
(d) Neutrons

37. What constitute current in a metal wire
(a) Electrons
(b) Protons
(c) Atoms
(d) Molecules

38. Which one of the following is not a radioactive element
(a) Uranium
(b) Radium
(c) Thorium
(d) Cadmium

39. The resistance of carbon _______ with rise in the temperature
(a) Increases
(b) Decreases
(c) Remain the same
(d) Fluctuate

40. Metals are good conductors of heat because
(a) They have free electrons
(b) Their atoms are far apart
(c) Their atoms collide frequently
(d) They have reflecting surfaces

41. What is the color of red rose in green light
(a) Red
(b) Yellow
(c) Black
(d) Blue

42. The wire having a black plastic cover is a
(a) Live wire
(b) Neutral wire
(c) Earth wire
(d) None of these

43. When oil is spread on water surface, the surface tension
(a) Increases
(b) Decreases
(c) Remains the same
(d) Depends on the nature of oil

44. The various distribution circuits are connected in
(a) Series
(b) Parallel
(c) Series or parallel
(d) None of these

45. Which is the most dense planet of our solar system
(a) Sun
(b) Jupiter
(c) Mercury
(d) Earth

Physics Mcqs for the preparation of NTS, PPSC, SPSC, BPSC, KPSC, FPSC, OTS and other academic entry test and jobs tests.

46. The field in which Einstein won Nobel Prize
(a) Biology
(b) Mathematics
(c) Physics
(d) Education

47. Laws of electrolysis was given by
(a) Faraday
(b) Maxwell
(c) Lenz
(d) Bohr

48. Which of the following mirrors is most suitable for using as a reflector in car headlights
(a) Parabolic mirror
(b) Convex mirror
(c) Concave mirror
(d) Plane mirror

49. Which of the following is a supporter of combustion
(a) Cooking gas
(b) Nitrogen gas
(c) Oxygen gas
(d) Producer gas

50. What is sight amplification by stimulated emission of radiation
(a) Solar energy
(b) A laser
(c) Plasma
(d) Cosmic rays

51. Which atomic reactor is used for studies of uranium of heavy water lattice
(a) Apsara
(b) Zerlina
(c) Dhruva
(d) Purnima –I

52. Which among the following is an element
(a) Alumina
(b) Brass
(c) Graphite
(d) Silica

53. A red tomato appears to be which color under blue light
(a) Black
(b) Red
(c) Blue
(d) Purple

54. What device makes use of EM radiation
(a) SONAR
(b) RADAR
(c) SCUBA
(d) TASER

55. Which of the following can’t be used to make a solar cell
(a) Silicon
(b) Platinum
(c) Gallium
(d) Germanium

56. Which of the following has more speed
(a) Light
(b) Sound
(c) Train
(d) Water

57. The velocity of electromagnetic waves is equal to
(a) Velocity of sound
(b) Velocity of light
(c) Velocity of Car
(d) None of these

58. Which of the following EM types have the highest energy levels
(a) Radio
(b) visible
(c) X-rays
(d) infrared

59. Which device can be used to store charge
(a) Transistor
(b) Diode
(c) Capacitor
(d) Resistor

60. What light source is used for most color analysis instruments
(a) Xenon
(b) Neon
(c) Tungsten
(d) Deuterium