Physics MCQs

Physics Objective (Multiple Choice) General Knowledge & General Science Questions & Answers for SSC-CGL, UPPSC, NDA, CDS and all one day examinations of India. These questions are part of GKToday’s 35000+ MCQs Bank Course in GKToday Android App

11. Which of the following is NOT an example of capillary action?

[A] Rise of ink in the fine pores of blotting paper
[B] soaking of water by a towel
[C] Wood swells in rainy season due to rise of moisture
[D] None of the above

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12. What happens to the viscosity of a liquid with increase in temperature?

[A] it increases
[B] it decreases
[C] it may increase or decrease
[D] No change

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13. What happens to the frequency of the pendulum if it is suspended from the ceiling of the lift moving downward with acceleration equal to acceleration due to gravity ?

[A] it increases
[B] it decreases
[C] No change
[D] No oscillation

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14. What is the difference of two close frequencies of superimposing waves known as?

[A] Transverse frequency
[B] Beat frequency
[C] Normal frequency
[D] Angular frequency

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15. What is the measure of the response of the ear to the sound known as?

[A] Pitch
[B] Intensity
[C] Loudness
[D] Amplitude

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16. What is the process known as when substance converts from the solid to the vapour state directly?

[A] Vaporisation
[B] Sublimation
[C] Regelation
[D] None of the above

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17. What do we call a cell that induces a spontaneous redox reaction to create a flow of electrical charges?

[A] Voltaic cell
[B] Electrolytic cell
[C] Such cells don’t exist
[D] None of the above

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18. Which of the following cells is the basis of Non-rechargeable batteries?

[A] Galvanic cells
[B] Electrolytic cells
[C] Both a and b
[D] None of the above

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19. Which of these is used to accelerate charged particles or ions to high energies?

[A] Solenoid
[B] Cyclotron
[C] Electric motor
[D] Toroid

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20. What is the magnetic field at any point in the open space inside the toroid?

[A] zero
[B] one
[C] Depends on the current in the turns
[D] Depends on number of turns

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