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. Consider the following statements: 

  1. It takes approximately 11 seconds for the light to reach the earth from moon
  2. It takes approximately  8 minutes for the light to reach from the sun. 
  3. It takes 4.22 years for the light to reach from the nearest star Alpha Centauri 

Which among the above statements is/ are correct ?

[A] 1 & 2 only
[B] 2 & 3 only
[C] 1 & 3 only
[D] 2 only

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2. Which of the following cases amount to be some work done in terms of Physics?

  1. A man pushing a wall but failing to move it
  2. A coolie standing with a load of 12 kg on his head
  3. A boy climbing up a staircase
  4. A boy carrying a box on his head and sliding over a frictionless horizontal surface

Select the correct option from the codes given below:

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

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3. Which of the following is / are correct statements?

  1. When glass rod is rubbed with silk, negative charge develops on silk
  2. When Ebonite rod is rubbed with fur, negative charge develops on fur

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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4. Which among the following can produce virtual image?

  1. Converging lens
  2. Concave Mirror
  3. Flat Mirror

Select the correct option from the codes given below:

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

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5. Which of the following is / are correct statements about the Millimeter waves, sometimes seen in news?

  1. These are among the highest radio frequency band
  2. They have higher wavelength than Microwaves
  3. They are most notably used in security appliances

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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6. If we look at the floating piece of iceberg on the sea, approximately what fraction of it is visible above the seawater level?

[A] 1/8th
[B] 1/6th
[C] 1/10th
[D] 1/5th

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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. You are sitting inside an open vehicle moving with uniform speed. When you throw a stone vertically upwards, the stone will fall__:

[A] Ahead of you
[B] Behind you
[C] Over you
[D] Either ahead or behind of you

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9. Which of the following is / are correct statements about the cosmic rays?

  1. They are made of charged particles
  2. They are received on earth mainly from Sun
  3. They cause Ozone Depletion

Select the correct option from the codes given below:

[A] Only 1 & 2
[B] Only 1 & 3
[C] Only 1
[D] None of them

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10. Two pieces of ice at 0°C would freeze together if pressed against each other and then released. In this context, which among the following is the correct principle in action in this?

[A] The melting point of pure ice decreases with pressure.
[B] The melting point of pure ice increases with Pressure
[C] The melting point of pure ice first increases, then decreases with pressure
[D] The melting point of pure ice first decreases then increases with pressure

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