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Physics Questions and Answers for Competitive Exams

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Physics Questions and Answers for Competitive Exams like NTS, PPSC, CSS, FPSC, PMS and Interviews

This post is about Physics Questions and Answers for Competitive Exams like NTS, PPSC, CSS, FPSC, PMS and Interviews. This is the 2nd Post of this Solved Physics MCQs series. These Physics Questions with Answers are Multiple Choice Questions of Physics which are good to prepare for entry test too. MCQs are taken from Caravan Comprehensive GK Book. Some other Physics MCQs for Entry Test.

Physics MCQs for Entry Test | Physics Questions with Answers

Click Here for Previous 20 Physics Objective Type Questions.

21. Tube light works on the principle of ________.

(a) Chemical effect of current
(b) Heating effect of current
(c) Magnetic effect of current
(d) Discharge of electricity through gases

(d) Discharge of electricity through gases

22. In a refrigerator. cooling is produced by _______.

(a) The ice which deposits on the freezer
(b) The evaporation of a volatile liquid
(c) The sudden expansion of a compressed gas
(d) None of the above

(b) The evaporation of a volatile liquid

23. Air is completely removed from an electric bulb to prevent_____.

(a) Oxidation of tungsten filament
(b) Bursting of the bulb
(c) Loss of light due to absorption
(d) None of the above

(a) Oxidation of tungsten filament

24. A person climbing a hill bends forward in order to_______.

(a) Avoid slipping
(b) Increase speed
(c) Reduce fatigue
(d) Increase stability

(d) Increase stability

25. On earth, a moving body ordinarily comes to rest by itself because of the _________.

(a) Law of inertia
(b) Forces of Friction
(c) Conservation of momentum
(d) Gravity

(b) Forces of Friction

26. When the door of an operating refrigerator is opened, the temperature of the room will _______.

(a) Decrease
(b) Remain unchanged
(c) Fall down immediately
(d) Increase

(d) Increase

27. An electric motor is used to convert _________.

(a) Electrical energy into mechanical energy
(b) Mechanical energy into kinetic energy
(c) Mechanical energy into electrical energy
(d) Higher voltage to lower voltage

(c) Mechanical energy into electrical energy

28. Two parallel wires carrying currents in the same direction attract each other because of __________.

(a) The potential difference between them
(b) The mutual inductance between them
(c) Electric forces between them
(d) Magnetic forces between them

(c) Electric forces between them

29. The energy of a body due to its motion is called _______.

(a) Heat energy
(b) Kinetic energy
(c) Potential energy
(d) Light energy

(b) Kinetic energy

30. A moving ball stops due to the action of ________.

(a) Nuclear Force
(b) Frictional Force
(c) Electric Force
(d) Magnetic Force

(b) Frictional Force

31. The energy stored in a stretched spring is_________.

(a) Potential energy
(b) Kinetic energy
(c) Heat energy
(d) Elastic potential energy

(d) Elastic potential energy

32. In cells chemical energy is transformed into __________.

(a) Kinetic energy
(b) Potential energy
(c) Heat energy
(d) Electrical energy

(d) Electrical energy

33. When a body is dropped from a certain height, the gravitational potential energy is converted into _______.

(a) Elastic potential energy
(b) Chemical energy
(c) Kinetic energy
(d) Light energy

(c) Kinetic energy

34. The human body converts the chemical potential energy of food into _______.

(a) Kinetic energy
(b) Light energy
(c) Nuclear energy
(d) Heat energy

(d) Heat energy

35. Electrochemical energy is required for the working of_________.

(a) Circulatory system
(b) Nervous system
(c) Excretory system
(d) Digestive system

(b) Nervous system

36. When the cat leaps for its prey then the chemical energy present in its muscles is converted to _____.

(a) Potential energy then to light energy
(b) Potential energy than to kinetic energy
(c) Electrical energy than to heat energy
(d) Heat energy than to Nuclear energy

(b) Potential energy than to kinetic energy

37. The energy stored in the fossil fuel is ________.

(a) Chemicalenergy
(b) Heatenergy
(c) Electricalenergy
(d) Elastic potential energy

(a) Chemicalenergy

38. Semi-conductor is such a substance, whose ability to conduct current lies in between______.

(a) Conductors and insulators
(b) Conductors and superconductors
(c) insulators and superconductors
(d) Wood and plastic

(a) Conductors and insulators

39. Though the temperature inside the lighted electric bulb is around 2700°C, the filament does not burn because______.

(a) The metal of which it is made is resistant to burning
(b) The oxygen necessary for combustion (and burning) is not available as the bulb is evacuated and filled with pure nitrogen or inert gases
(c) It does not burn in closed systems
(d) It is made of the non-metallic substance

(b) The oxygen necessary for combustion (and burning) is not available as the bulb is evacuated and filled with pure nitrogen or inert gases

40. A remote control gadget (for TV etc.) has in it _______.

(a) A small electromagnet, that emits electromagnetic
(b) A small oscillator that emits electric pulses
(c) A small transmitter that emits infrared signals
(d) None of these

(c) A small transmitter that emits infrared signals

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