Physics GK MCQ Questions SET-4 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 type of reaction produces the most harmful radiation ?

(i) Fusion reaction
(ii) Fission reaction
(iii) Chemical reaction
(iv) Photo-Chemical reaction

(ii) Fission reaction

Q2. Svedberg Unit” is a unit of _?

(i) Concentration
(ii) Size
(iii) Density
(iv) Time

(iv) Time

Q3. What is the range of Strong Nuclear force?

(i) Infinite
(ii) Very short Subnuclear size
(iii) Very short Nuclear size
(iv) None

(iii) Very short Nuclear size

Q4. What do we call an undoped semiconductor?

(i) Intrinsic semiconductor
(ii) Extrinsic semiconductor
(iii) p-type semiconductor
(iv) None of the above

(i) Intrinsic semiconductor

Q5. The damage of the human body due to radiation (X-rays or gamma rays etc) is measured in :

(i) Rems
(ii) Roentgen
(iii) Curie
(iv) Rads

(i) Rems

Q6. What is the charge of a p-type semiconductor?

(i) Positive
(ii) Negative
(iii) Neutral
(iv) None of the above

(iii) Neutral

Q7. For Gamma radiation, what stops its penetrating abilities?

(i) Lead
(ii) Steal
(iii) Concrete
(iv) All of the above

(iv) All of the above

Q8. What do we call a device which generates electric energy using chemical energy?

(i) Potentiometer
(ii) Resistor
(iii) Cell
(iv) Metre bridge

(iii) Cell

Q9. The energy obtained from atoms is known as __

(i) Solar energy
(ii) Heat energy
(iii) Nuclear energy
(iv) Chemical energy

(iii) Nuclear energy

Q10. Which of the following represents Electric Power (V=Voltage, I=Current)?

(i) V x I
(ii) V/I
(iii) 2( V x I)
(iv) 1/VI

(i) V x I

Q11. A nuclear reactor is said to have become ‘critical’ when

(i) It stops due to malfunctioning
(ii) It starts emitting dangerous radioactive radiations
(iii) It is shut down to avoid explosion
(iv) It is ready to produce controlled energy

(iv) It is ready to produce controlled energy

Q12. What is the property of a conductor to resist the flow of charges known as?

(i) Conductance
(ii) Conductivity
(iii) Resistance
(iv) Electric Potential

(iii) Resistance

Q13. After removing two electrons from helium atom it become?

(i) UV rays
(ii) Alpha particle
(iii) Gama particle
(iv) X rays

(ii) Alpha particle

Q14. What is the size of the image formed by a concave mirror when the object is at focus?

(i) Enlarged
(ii) Point sized
(iii) Same size
(iv) Highly enlarged

(iv) Highly enlarged

Q15. Who among the following developed the technology of underground nuclear explosion ?

(i) Dr. Homi J. Bhabha
(ii) Dr. Vikram Sarabhai
(iii) Dr. Raja Ramanna
(iv) Dr. P. K. Iyengar

(i) Dr. Homi J. Bhabha

Q16. What do we call the long-sightedness caused by loss of elasticity of the lens of the eye?

(i) Myopia
(ii) Presbyopia
(iii) Hypermetropia
(iv) None

(ii) Presbyopia

Q17. Gamma rays are emissions that have

(i) Charge but no mass
(ii) Neither mass nor charge
(iii) Both mass and charge
(iv) Mass but no charge

(ii) Neither mass nor charge

Q18. What is the temperature range used in the definition of a calorie?

(i) 12.5° C to 13.5° C
(ii) 13.5° C to 14.5° C
(iii) 14.5° C to 15.5° C
(iv) 15.5° C to 16.5° C

(iii) 14.5° C to 15.5° C

Q19. Which of the following branch of Physics deal with study of Atomic Nuclei?

(i) Nuclear Physics
(ii) Bio Physics
(iii) Atomic Physics
(iv) None of the above

(i) Nuclear Physics

Q20. What do we call the process taking place at constant temperature?

(i) Adiabatic
(ii) Isothermal
(iii) Isochoric
(iv) isobaric

(ii) Isothermal

Q21. Nuclear Fission is caused by the impact of

(i) Electron
(ii) Neutron
(iii) Proton
(iv) Deutron

(ii) Neutron

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