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  • Question
  • Heat is associated with


  • Options
  • A. K.E of random motion of molecules
  • B. K.E of orderly motion of molecules
  • C. Total K.E of random and orderly motion of molecules
  • D. None of these

  • Correct Answer
  • K.E of random motion of molecules 


  • Physics problems


    Search Results


    • 1. If a band is played on the moon the sound will

    • Options
    • A. reverberate
    • B. be heard by us faintly
    • C. be heard upto 10 km from it
    • D. not be heard at any distance at all from it
    • Discuss
    • 2. When a steel ball is placed on the surface of mercury, it does not sink because

    • Options
    • A. of the surface tension of mercury
    • B. mercury is a semisolid
    • C. of the high viscosity of mercury
    • D. the density of mercury is greater than that of steel
    • Discuss
    • 3. A body given with an initial velocity moved under the effect of gravity is called?
    • Discuss
    • 4. Fat can be seperated from milk in a cream seperator because of :

    • Options
    • A. Cohesive Force
    • B. Gravitational Force
    • C. Centripetal Force
    • D. Centrifugal Force
    • Discuss
    • 5. A nuclear reactor is said to have become 'critical' when

    • Options
    • A. it stops due to malfunctioning
    • B. it starts emitting dangerous radioactive radiations
    • C. it is shut down to avoid explosion
    • D. it is ready to produce controlled energy
    • Discuss
    • 6. Two bulbs are fitted in a room in the domestic electric installation. One of them glows brighter than the other. Then

    • Options
    • A. the brighter bulb has smaller resistance
    • B. the brighter bulb has larger resistance
    • C. both the bulbs have the same resistance
    • D. none of these
    • Discuss
    • 7. A standing wave occurs when

    • Options
    • A. a wave reflects upon itself
    • B. the amplitude of a wave exceeds its wavelength
    • C. two waves overlap
    • D. the speed of the wave is zero or near zero
    • Discuss
    • 8. The amount of water vapor in the air is

    • Options
    • A. Hot air
    • B. Humidity
    • C. Dew
    • D. Foam
    • Discuss
    • 9. If a barometric reading is falling, this usually indicates what

    • Options
    • A. Increasing pressure
    • B. Decreasing pressure
    • C. No pressure
    • D. None
    • Discuss
    • 10. Which of the following is Not a form of Energy?

    • Options
    • A. Heat
    • B. Sound
    • C. Motion
    • D. Pressure
    • Discuss


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