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  • Question
  • Light travels fastest in


  • Options
  • A. Nitrogen
  • B. Air
  • C. Steel
  • D. Vacuum

  • Correct Answer
  • Vacuum 

  • Tags: Bank Exams

    Physics problems


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    • 1. What is the unit of the physical quantity "Stress"?

    • Options
    • A. newton second
    • B. steradian
    • C. pascal
    • D. joule
    • Discuss
    • 2. Instrument for measuring work performed is called _________.

    • Options
    • A. Eudiometer
    • B. Anemometer
    • C. Hyetometer
    • D. Ergometer
    • Discuss
    • 3. Warm air is ______.

    • Options
    • A. heavier than cold air hence warm air rises up
    • B. lighter than cold air hence warm air moves down
    • C. lighter than cold air hence warm air rises up
    • D. heavier than cold air hence warm air moves down
    • Discuss
    • 4. The SI unit of acceleration is __________.

    • Options
    • A. ms-1
    • B. ms-2
    • C. ms2
    • D. m/s
    • Discuss
    • 5. Calculate the pressure (in Pa) if a thrust of 800 N is applied to an area of 16 m2.

    • Options
    • A. 128
    • B. 100
    • C. 64
    • D. 50
    • Discuss
    • 6. What is impulse equal to?

    • Options
    • A. Change in momentum
    • B. Change in force
    • C. Change in velocity
    • D. Change in acceleration
    • Discuss
    • 7. Acceleration is

    • Options
    • A. Inversely proportional to force
    • B. Inversely proportional to mass
    • C. Directly proportional to mass
    • D. Directly proportional to force
    • Discuss
    • 8. If a body slides over a surface, the force resisting the motion between them is called ______.

    • Options
    • A. Centripetal force
    • B. Friction
    • C. Centrifugal force
    • D. Inertia
    • Discuss
    • 9. In a streamline flow, ________ at every point in the fluid remains same.

    • Options
    • A. force
    • B. pressure
    • C. pressure
    • D. speed
    • Discuss
    • 10. What is the viscosity of an ideal fluid?

    • Options
    • A. Equal to its mass
    • B. Equal to its weight
    • C. Zero
    • D. One
    • Discuss


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