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 temperature scale is based upon absolute zero?

[A] Celsius
[B] Fahrenheit
[C] Kelvin
[D] Rankine

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2. Consider the following statements:

  1. International Space Station is stationary, when seen from Earth
  2. An astronaut in International Space Station feels complete weightlessness
  3. International Space Station is always in a state of Free fall

Which among the above statements is/ are correct?

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

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3. The wavelengths for the light of red and blue colours are distinctly different. In this context, consider the following statements:
1. In vacuum, both red and blue colours have same speed
2. In glass, the speed of red colour is more than blue colour
Which among the above statements is / are correct?

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

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4. Consider the following statements:
1. Infra-red radiations produce heating effect, but not the visible radiation.
2. Infra-red radiations do not get scattered as easily as compared to visible light
Which among the above statements is / are correct?

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

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5. 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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6. 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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7. A Pendulum Clock, whose pendulum is made up of a steel rod, will become slow if __:
1. Temperature rises
2. Taken to moon
3. Taken from equator to pole
Choose the correct option from the codes given below:

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

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8. Consider the following:
1. Formation of a rainbow
2. Dispersion of light,
3. A coin appears raised when placed in a trough filled with water
Which among the above refraction?

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

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9. 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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10. Direct Current produces a magnetic field similar to a permanent magnet. This magnetic field:

[A] is unidirectional and has a steady magnitude
[B] is unidirectional but its magnitude varies in regular pattern
[C] has steady magnitude but changes direction in regular pattern
[D] changes direction and magnitude in regular pattern

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