Tnsb +2 Physics (Trial)

10 Questions | Total Attempts: 118

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Physics Quizzes & Trivia

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Questions and Answers
  • 1. 
    Radiocarbon is produced in the atmosphere as a result of
    • A. 

      Collision between fast neutrons and nitrogen nuclei present in the atmosphere

    • B. 

      Action of ultraviolet light from the sun on atmospheric oxygen

    • C. 

      Action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere

    • D. 

      Lightning discharge in atmosphere

  • 2. 
    Out of the following pairs, choose the pair in which the physical quantities do not have identical dimension?
    • A. 

      Pressure and Young's modules

    • B. 

      Planck's constant and Angular momentum

    • C. 

      Impulse and moment of force

    • D. 

      Force and rate of change of linear momentum

  • 3. 
    Lux is the SI unit of
    • A. 

      Intensity of illumination

    • B. 

      Luminous efficiency

    • C. 

      Luminous flux

    • D. 

      Luminous intensity

  • 4. 
    Moment of inertia is
    • A. 

      Vector

    • B. 

      Phasor

    • C. 

      Scalar

    • D. 

      Tensor

  • 5. 
    Sound produced at a point is heard by a person after 5 second, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minimum distances between the two persons?
    • A. 

      1.8 km, 0.15 km

    • B. 

      2.2 km, 0.20 km

    • C. 

      2.8 km, 0.25 km

    • D. 

      3.3 km, 0.30 km

  • 6. 
    Stars which appear single to the naked eye but are double when seen through a telescope are
    • A. 

      Novas and supernovas

    • B. 

      Binaries

    • C. 

      Asteroids

    • D. 

      Quasars

  • 7. 
    If the distance between two masses is increased by a factor of 4, the gravitational force of attraction between them will
    • A. 

      Reduce by a factor of 16

    • B. 

      Remain Same

    • C. 

      Reduce by a factor of 4

    • D. 

      Increase by a factor of 4

  • 8. 
    A cannonball is fired horizontally at 10 m/s from a cliff. Its speed one second after being fired is about
    • A. 

      10m/s

    • B. 

      14m/s

    • C. 

      16m/s

    • D. 

      20m/s

  • 9. 
    A particle is executing simple harmonic motion with frequency f. The frequency at which its kinetic energy change into potential energy is
    • A. 

      F/2

    • B. 

      F

    • C. 

      2f

    • D. 

      4f

  • 10. 
    Mica is used in electrical appliances such as electric iron because mica is
    • A. 

      A good conductor of heat but a bad conductor of electricity

    • B. 

      A bad conductor of heat but a good conductor of electricity

    • C. 

      A good conductor of heat as well as electricity

    • D. 

      A bad conductor of heat as well as electricity

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