General Science - Physics MCQs

Physics Objective (Multiple Choice) General Knowledge & General Science Questions & Answers for SSC-CGL, UPPSC, UPSC, NDA, CDS and UPSC Civil Services Prelims Examinations.

1. Which among the following is measured using a Vernier Caliper?

[A] Dimensions
[B] Time
[C] Sound
[D] Temperature

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2. Ohm is a unit of measuring _________?

[A] Resistance
[B] Voltage
[C] Current
[D] None of the above

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3. Consider the following:
1. Mica
2. Graphite
3. Sulphur
4. Human body
Which among the above is / are electrical conductors?

[A] Only 1, 2 & 4
[B] Only 2, 3 & 4
[C] Only 2 & 4
[D] Only 2

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4. Which of the following is / are correct statements with respect to the image formed in a plane mirror?  

  1. Image is always virtual
  2. The distance of image from the mirror is same as the distance between object and mirror
  3. Image is laterally inverted

Select the correct option from the codes given below:

[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3

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5. A motorboat directed upstream is seen to be at rest from the bank of a river. Which among the following is / are correct statement in this context?
1. In terms of Physics, the engine of the boat is doing work
2. In terms of Physics, the engine of the boat is not doing any work
3. If the engine stops, no work will be done
4. If engine stops, boat will gain kinetic energy
Select the correct option from the codes given below:

[A] Only 1 & 3
[B] Only 1, 3 & 4
[C] Only 2, 3 & 4
[D] Only 2 & 4

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6. Consider the following differences between conduction and convection modes of transfer of heat:
1. While there is no actual movement of the molecules in conduction; convection is the transfer of heat by the actual movement of molecules
2. While transfer of heat by conduction occurs in solids; transfer of heat by convection occurs in liquids and gases
Which among the above is / are correct statements?

[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 nor 2

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7. Which among the following is / are correct statements?
1. The images produced by Concave Mirrors are always real images
2. The images produced by Flat Mirrors are always virtual images
3. Converging Lens can produce virtual as well as real images
Select the correct option from the codes given below:

[A] Only 1 is correct
[B] Only 2 is correct
[C] Only 1 & 2 are correct
[D] Only 2 & 3 are correct

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8. Which among the following is / are correct statements?
1. Friction converts Kinetic energy to radiation energy
2. A collision of two bodies can be said to be perfectly inelastic if no energy is exchanged between them
Select the correct option from the codes given below:

[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 nor 2

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9. Which among the following compound is most commonly used in the Photochromic lenses?

[A] Potassium Dichromate
[B] Silver Chloride
[C] Potassium ferrate
[D] Ferric Chloride

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10. While passing over an obstacle a light ray slightly bends round the corner. The phenomenon is known as__:

[A] Scattering
[B] Polarisation
[C] Diffraction
[D] Refraction

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