Physics GK MCQ Questions SET-3 with Answers free PDF Download

We have provide GK MCQ Questions for physics GK questions with Answersfree PDF. Download based on the important concepts and topics given in the textbook as per new exam pattern. All these Physics GK MCQs Multiple Choice Questions with Answers provided here with detailed solutions. Use them as reference and be confident in the actual exam by practicing the MCQ Quiz Questions of Physics GK as much as you can. Each question has four options followed by the right answer.

MCQ Questions for Physics GK with Answers

Q1. Person who is colourblind cannot distinguish between

(i) Black and yellow
(ii) Red and green
(iii) Yellow and white
(iv) Green and blue

(ii) Red and green

Q2. In which of the following situations, the state of weightlessness can be observed?

(i) When objects fall freely under gravity
(ii) When a satellite revolves in its orbit around the earth
(iii) When bodies are at null points in outer space
(iv) All of the above

(iv) All of the above

Q3. In a Cinema hall, the distance between the projector and the screen is increased by 2%. Then the intensity of illumination on the screen is

(i) Decreased by 2%
(ii) Decreased by 4%
(iii) Increased by 2%
(iv) Increased by 4%

(ii) Decreased by 4%

Q4. Kepler’s second law is also known as:

(i) Law of periods
(ii) Law of areas
(iii) Law of orbits
(iv) Law of Planets

(ii) Law of areas

Q5. Optical fiber works on the principle of

(i) Scattering
(ii) Interference
(iii) Total internal reflection
(iv) Refraction

(iii) Total internal reflection

Q6. The energy by virtue of its position is known as:

(i) Kinetic energy
(ii) Potential energy
(iii) Internal energy
(iv) Heat energy

(ii) Potential energy

Q7. Electron microscope works on which of the following principles?

(i) Optical interference
(ii) Wave Nature of electrons
(iii) Motion of charged particle in electromagnetic fields
(iv) Faraday’s law of Electromagnetic induction

(ii) Wave Nature of electrons

Q8. The capacity of a body to do work is known as:

(i) Energy
(ii) Power
(iii) Momentum
(iv) Strength

(i) Energy

Q9. Which of the following is optical illusion?

(i) Rainbow
(ii) Earthshine
(iii) Halo
(iv) Mirage

(iv) Mirage

Q10. The acceleration at a given instant of time is called as:

(i) Average acceleration
(ii) Instantaneous acceleration
(iii) Variable acceleration
(iv) Zero acceleration

(ii) Instantaneous acceleration

Q11. The atmospheric layer reflecting radio waves is called

(i) Ozonosphere
(ii) Ionosphere
(iii) Stratosphere
(iv) Mesosphere

(ii) Ionosphere

Q12. Joule/kg is the S.I unit of which of these physical quantities?

(i) Entropy
(ii) Permittivity of free space
(iii) Latent heat
(iv) Gas constant

(iii) Latent heat

Q13. To resolve an object in an electron microscope,

(i) The wavelength of the electrons must be close to the diameter of the object
(ii) The wavelength of the electrons must be greater than the diameter of the object.
(iii) Both (i) & (ii)
(iv) None of the above

(i)The wavelength of the electrons must be close to the diameter of the object

Q14. Curie the a unit of which of the following?

(i) Luminescence
(ii) Radioactivity
(iii) Pressure
(iv) Mass

(iv) Mass

Q15. A microscope used in pathological laboratories forms

(i) Magnified, virtual, erect image
(ii) Diminished, real and erect image
(iii) Magnified, virtual and inverted image
(iv) Diminished, virtual and erect image

(iii) Magnified, virtual and inverted image

Q16. Which of the following units is NOT used for measuring length?

(i) Astronomical Unit
(ii) Light year
(iii) Par sec
(iv) slug

(iv) slug

Q17. A colour-blind person cannot

(i) See distant objects
(ii) See black colour
(iii) Distinguish between certain colours
(iv) Have persistence of vision

(iii) Distinguish between certain colours

Q18. Who among the following gave the Uncertainity principle?

(i) R.A Milkman
(ii) Ernset Rutherford
(iii) S.N Bose
(iv) Werner Heisenberg

(iv) Werner Heisenberg

Q19. Find the power of a convex lens if the image formed is at a distance of 25 cm from the lens when the object is placed on the other side of the lens at 12 cm from the optical centre?

(i)-4.33 diopters
(ii) 12.33 diopters
(iii) -12.33 diopters
(iv) 4.33 diopters

(ii) 12.33 diopters

Q20. A person runs up two flights of stairs instead of walking up. The person feels more tired because _?

(i) He does more work when he runs in comparison to when he walks
(ii) His power output is greater when he runs in comparison to when he walks
(iii) His gravitational force is greater when he runs in comparison to when he walks
(iv) He has more inertia when he runs in comparison to when he walks

(ii) His power output is greater when he runs in comparison to when he walks

Q21. The magnifying power of an astronomical telescope can be decreased by

(i)Decreasing the focal length of the eyepiece
(ii) Increasing the focal length of the eyepiece
(iii) Increasing the focal length of the objective
(iv) None of these

(ii) Increasing the focal length of the eyepiece

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