Physics MCQ Quiz Questions PDF Download

Physics Objective Questions and Answers PDF | Physics MCQ Questions for Competitive Examination/ Physics Multiple Choice Questions PDF

Physics MCQ Questions: Here we have listed below the Physics multiple choice questions and answers are given below. General science is very important subject and Scoring for all competitive exams. People who are preparing for competitive exams and various exams like railway, RRB, JSSC, BSSC, PSU, IES, NTPC, BHEL, IOCL, bank etc  kindly practice physics mcq questions and answers. So here we have described 30 Physics mcq questions for competitive exams, physics objective type, multiple choice questions, practice physics questions and answers, multiple choice questions and answers on physics are given below. Candidate read the questions twice clearly then answer the questions. We have already update chemistry MCQ quiz/PDF, candidate use this chemistry quiz to test your knowledge now.  Day by day practice this kind of general knowledge science physics quiz to get a clear idea of competitive exams.

Details of  MCQ Questions on Physics

Article Name	Physics
Number of Questions	30
Category	MCQ

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Read the given below mcq questions on Physics

1. Mirage is due to _________

1. Equal heating of different parts of the atmosphere
2. Magnetic disturbances in the atmosphere
3. Depletion of ozone layer in the atmosphere
4. Unequal heating of different parts of the atmosphere

Answer: Unequal heating of different parts of the atmosphere

2. Light year is a unit of ___________

1. Time
2. Light
3. Intensity of light
4. distance

Answer: distance

3. The light from the sun reaches us in nearly__________

1. 8 minutes
2. 4 minutes
3. 2 minutes
4. 16 minutes

Answer: 8 minutes

4. ___________is not used in the field of physics.

1. Stock value
2. Latent heat
3. Nuclear fusion
4. Refractive index

Answer: Stock value

5. The working principle of a washing machine is ____________

1. diffusion
2. centrifugation
3. reverse osmosis
4. dialysis

Answer: centrifugation

6. The speed of light will be minimum while passing through_________

1. water
2. air
3. vaccum
4. glass

Answer: glass

7. The stars appears to move from east to west because___________

1. The earth rotates from east to west
2. The earth rotates from west to east
3. All stars move from east to west
4. The background of the stars moves from west to east

Answer: The earth rotates from west to east

8. Radiocarbon is produced in the atmosphere as result of ____________

1. Action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere
2. collision between fast neutrons and nitrogen nuclei present in the atmosphere.
3. Action of ultraviolet light from the sun on atmospheric oxygen
4. Lightning discharge in atmosphere

Answer: collision between fast neutrons and nitrogen nuclei present in the atmosphere

9. Nuclear sizes are expressed in a unit named____________

1. Tesla
2. Newton
3. Angstrom
4. Fermi

Answer: Fermi

10. Planets do not twinkle because_________

1. They are nearer to earth and hence we receive a greater amount of light
2. They are very far away from the earth resulting in decrease in intensity of light
3. They emit light of a constant intensity
4. Their distance from the earth does not change with time

Answer: They are nearer to earth and hence we receive a greater amount of light

11. The absorption of ink by blotting paper involves ___________

1. Siphon action
2. Diffusion of ink through the blotting
3. capillary action phenomenon
4. Viscosity of ink

Answer: capillary action phenomenon 

12. RADAR is used for_____________

1. receiving a signals in a radio receiver
2. locating submerged submarines
3. locating geostationary satellites
4. detecting and locating the position of objects such as Aeroplanes

Answer: detecting and locating the position of objects such as Aeroplanes

13. Sound waves in air are_____________

1. electromagnetic
2. longitudinal
3. polarized
4. transverse

Answer: longitudinal

14. Sound of frequency below 20 Hz is called___________

1. audio sounds
2. infrasonic
3. supersonics
4. ultrasonic

Answer: infrasonic

15. Select the Scalar Quantity_________

1. Pressure
2. Force
3. Velocity
4. Acceleration

Answer: Pressure

16. Metals are good conductors of electricity because________

1. They have high melting point
2. The atoms are lightly packed.
3. They contain free electrons
4. All of the above

Answer: They contain free electrons

17. Moment of inertia is____________

1. Phasor
2. Scalar
3. Vector
4. Tensor

Answer: Tensor

18. Sound travels at the fastest speed in__________

1. water
2. steel
3. air
4. vacuum

Answer: steel

19. One thousand microns is equal to___________

1. 10^-3m
2. 10^-9m
3. 10^-6m
4. 10^-12m

Answer: 10^-3m

20. Superconductors are substances which ________

1. offer no resistance to the flow of electricity
2. offer high resistance to the flow of current
3. conduct electricity at high temperatures
4. conduct electricity at low temperature

Answer: offer no resistance to the flow of electricity

21. Radio telescopes are better than optical telescopes because

1. they can detect faint galaxies which no optical telescope can
2. they can work even in cloudy conditions
3. they can work during the day and night
4. All of the above

Answer: All of the above

22. Intensity of sound at a point is  its distance from the source

1. directly proportional to square of
2. directly proportional to square of
3. inversely proportional to square of
4. inversely proportional to

Answer: inversely proportional to square of

23. Rainbow is due to _____

1. refraction and reflection of sunlight by water droplets
2. absorption of sunlight in minute water droplets
3. diffusion of sunlight through water droplets
4. ionization of water deposit

Answer: refraction and reflection of sunlight by water droplets

24. Isotopes of an elements contain _______

1. equal number of protons and electrons
2. the same number of protons but different number of neutrons
3. the same number of neutrons but different number of protons
4. equal number of nucleons

Answer: the same number of protons but different number of neutrons

25. The purpose of choke in tube light is________

1. Induce low resistance
2. Induce high voltage
3. Induce low voltage
4. Induce high resistance

Answer: Induce high voltage

26. Sir C.V. Raman was awarded Nobel prize for his work connected with which of the following phenomenon of radiation?

1. Diffraction
2. Interference
3. Scattering
4. Polarization

Answer: Scattering

27. Supersonic plane fly with the speed________

1. of sound
2. less than the speed of sound
3. greater than the speed of sound
4. of light

Answer: greater than the speed of sound

28. The optical fibre works on the _______

1. total internal reflection
2. principle of refraction
3. interference
4. scattering

Answer: total internal reflection

29. Mercury is commonly used as a thermometric fluid rather than water because__________

1. density of mercury is more than the water
2. specific heat of mercury is less than water
3. specific heat of mercury is more than water
4. mercury has greater visibility than water

Answer: mercury has greater visibility than water

30. Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit _________

1. X-rays
2. ultraviolet light
3. radio waves
4. visible light

Answer: visible light

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