Physics GK MCQ Questions SET-2 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. Which of the following features of a tunnel diode is its drawback?

(i) Extremely high frequency response
(ii) Very wide temperature range of operations
(iii) Instability due to negative resistance
(iv) Very low power consumptions

(iv) Very low power consumptions

Q2. Which of the following is correct about a Sound wave?

(i) It is a mechanical wave
(ii) It is an electromagnetic wave
(iii) It is both a mechanical and electromagnetic wave
(iv) It is neither a mechanical nor an electromagnetic wave

(i) It is a mechanical wave

Q3. Which one among the following components is used as an amplifying device?

(i) Transformer
(ii) Diode
(iii) Capacitor
(iv) Transistor

(iii) Transistor

Q4. Which of the following can be measured using SONAR?

(i) distance of underwater objects
(ii) direction of underwater objects
(iii) speed of underwater objects
(iv) All of the above

(iv) All of the above

Q5. When a piece of pure silicon is doped with aluminium, then

(i) The conductivity of the doped silicon piece will remain the same
(ii) The doped silicon piece will become n-type
(iii) The doped silicon piece will become p-type
(iv) The resistivity of the doped silicon piece will increase

(iii) The doped silicon piece will become p-type

Q6. What happens to the time period of a spring pendulum based clock kept on the earth when it is taken to moon?

(i) Time period reduces to half
(ii) Time period becomes twice
(iii) Time period becomes one-sixth
(iv) No change

(iv) No change

Q7. In a bipolar junction transistor

(i) All the three regions (the emitter, the base and the collector) have equal concentrations of impurity
(ii) The emitter has the least concentration of impurity
(iii) The collector has the least concentration of impurity
(iv) The base has the least concentration of impurity

(iv) The base has the least concentration of impurity

Q8. In which of the following positions is the kinetic energy maximum in S.H.M?

(i) Extreme position
(ii) Mean position
(iii) Can be at extreme or mean position
(iv) None of the above

(ii) Mean position

Q9. Instrument for measuring blueness of the sky or ocean is called

(i) Bathymeter
(ii) Ceraunograph
(iii) Cyanometer
(iv) Barometer

(iii) Cyanometer

Q10. Which of the following instruments is used to measure the relative density of a liquid?

(i) Hydrometer
(ii) Hygrometer
(iii) Lactometer
(iv) Gravitimeter

(i) Hydrometer

Q11. What is a compound microscope?

(i) A microscope that has one lens.
(ii) A microscope that has two sets of lenses : an occular lens and an eyepiece.
(iii) A microscope whose lenses are concave.
(iv) A microscope whose lenses are convex.

(ii) A microscope that has two sets of lenses : an occular lens and an eyepiece.

Q12. What is the angle of contact for pure water and glass?

(i) 0°
(ii) 30°
(iii) 180°
(iv) 90°

(i) 0°

Q13. The redness in atmosphere at Sunrise and Sunset is due to :

(i) Refraction of light
(ii) Reflection of light
(iii) Dispersion of light
(iv) Scattering of light

(iv) Scattering of light

Q14. What is the upward force experienced by a body, when it is immersed in a fluid, known as?

(i) Tangential force
(ii) Buoyant force
(iii) Centrifugal force
(iv) Hydraulic force

(ii) Buoyant force

Q15. Fibre optics work on the principle of

(i) Scattering of light
(ii) Total internal absorption
(iii) Total internal reflection
(iv) Optical rotation

(iii) Total internal reflection

Q16. The Kinetic energy of a satellite is maximum in which of the following conditions?

(i) when the satellite is at perigee
(ii) when the satellite is at apogee
(iii) it is equal at perigee and apogee
(iv) None of the above

(i) when the satellite is at perigee

Q17. Purpose of an optical filter is to

(i) Reflect lights of different colours
(ii) Dispense light into component colours
(iii) Refract light of different colours
(iv) Transmit or absorb light of different colours

(iv) Transmit or absorb light of different colours

Q18. On which of the following the escape velocity of a body does not depend?

(i) Mass of the body
(ii) Radius of the planet
(iii) Mass of the planet
(iv) None of the above

(i) Mass of the body

Q19. The information of brilliant colors in a thin soap film is a consequence of the phenomena of

(i) Polarization and interference
(ii) Diffraction and dispersion
(iii) Multiple refraction and dispersion
(iv) Multiple reflection and interference

(iv) Multiple reflection and interference

Q20. Which of the following has an effect on the value of acceleration due to gravity?

(i) Shape of the earth
(ii) Height above the earth surface
(iii) Axial rotation of the earth
(iv) All of the above

(iv) All of the above

Q21. The illuminating powers of two sources are compared by

(i) A spectrometer
(ii) A photometer
(iii) A polarimeter
(iv) A fluxmeter

(ii) A photometer

Q22. Which of the following is true about universal gravitational constant in the case of two bodies each of unit mass having their centres placed at unit distance apart?

(i) It is equal to the force of attraction between them
(ii) It is equal to twice the force of attraction between them
(iii) It is equal to half the force of attraction between them
(iv) It is equal to ten times the force of attraction between them

(i) It is equal to the force of attraction between them

Q23. Which microscope is often used to view metal surfaces?

(i) Optical microscopes
(ii) Scanning tunneling microscopes
(iii) Electron microscopes
(iv) None of the above

A(i)Optical microscopesove

Q24. What do we call the minimum velocity with which a body must be projected up, so as to enable it to just overcome the gravitational pull?

(i) Orbital velocity
(ii) Gravitational velocity
(iii) Escape velocity
(iv) None of the above

(iv) Escape velocity

Q25. Lens is made up of which glass

(i) Ordinary glass
(ii) Pyrex glass
(iii) Flint glass
(iv) Cobalt glass

(iii) Flint glass

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