General Awareness Quiz – Physics

General Awareness Quiz Set 29 for SSC CGL, SSC CHSL and Railways exams. Physics Quiz for SSC CGL, SSC CHSL, Railways etc.

Topic: Physics

1. Which of these known as god particle?
   A) Neutrinos
   B) Higgs Boson
   C) Electron
   D) Mesons
   
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     Option B.
   Explanation: Higgs Boson
2. Which of these physical quantities is measured in Angstrom?
   A) Power
   B) Time
   C) Distance
   D) Work
   
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     Option C.
   Explanation: Distance
3. Which of these instruments is used to measure the wind speed?
   A) Viscometer
   B) Anemometer
   C) Fathometer
   D) Thermopile
   
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   Option B.
   Explanation: Anemometer.
   Viscometer: Viscosity of Fluids.
   Fathometer: Type of echo sounder.
   Thermopile: Calculate small quantity of heat.
4. What do we call a celestial object with a very small radius and high density?
   A) Supernovae
   B) Neutron Star
   C) Asteroid or Meteoroid
   D) Binary Star
   
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   Option B.
   Explanation: Neutron Star.
   Supernova: is a event that occurs on a death of certain types of stars.
   Asteroid/Meteoroid: a large rocky body in space, in orbit around the Sun. Meteoroid: much smaller rocks or particles in orbit around the Sun. Meteor: If a meteoroid enters the Earth’s atmosphere and vaporizes, it becomes a meteor, which is often called a shooting star.
   Binary Star: is a star system consisting of two stars orbiting around their common barycenter. Systems of two or more stars are called multiple star systems.
5. Who invented Telescope?
   A) Galileo Galilei
   B) Karl Benz
   C) Guglielmo Marconi
   D) Benjamin Franklin
   
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   Option A
   Explanation:Galileo Galilei; Karl Benz: Car; Guglielmo Marconi:Radio; Benjamin Franklin:Lightning rod, Bifocal lens.
6. Who invented Nuclear reactor?
   A) Michael Faraday
   B) Enrico Fermi
   C) Otto Hann
   D) Rutherford
   
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   Option B.
   Explanation:Enrico Fermi.
   Michael Faraday:discovered the principles of electromagnetic induction and diamagnetism, and the laws of electrolysis.
   Otto Hann:Nuclear Fission.
   James Watt: Steam Engine,Photocopy Machine,Hourse power concept.
7. What will happen to a ball if it is dropped from a spacecraft revolving around the earth at a height of 120 km?
   A) It will go very far in space
   B) It will moves with a velocity v along the original orbit of spacecraft
   C) It will move tangentially along the spacecraft
   D) It will fall down
   
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   Option B.
   
8. What happens to the orbital velocity of a satellite when the radius of orbit is increased?
   A) it decreases
   B) it increase
   C) it remains same
   D) none of the above
   
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   Option A.
   Explanation: it decreases.
9. The minimum speed require for the satellite to put in a earth orbit is
   A) Kinetic Velocity
   B) Escape Velocity
   C) Orbital Velocity
   D) None of the above
   
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   Option C.
   Explanation: Escape Velocity
10. On which of the following Escape Velocity not depends:
    A) Radius of planet
    B) Mass of planet
    C) Mass of body
    D) None of the above
    
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    Option C.
    Explanation: Mass of body.

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