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  • Question
  • oil raise up the wick in a lamp. The principle involves


  • Options
  • A. the diffusion of oil through the wick
  • B. the liquid state of oil
  • C. capillary action phenomenon
  • D. volatility of oil

  • Correct Answer
  • capillary action phenomenon 


  • Physics problems


    Search Results


    • 1. Identify the vector quantity from the following

    • Options
    • A. Heat
    • B. Angular momentum
    • C. Time
    • D. Work
    • Discuss
    • 2. out of the following, which is not emitted by radioactive substance?

    • Options
    • A. Electrons
    • B. Electromagnetic radiations
    • C. Alpha particles
    • D. Neutrons
    • Discuss
    • 3. Stars which appear single to the naked eye but are double when seen through a telescope are

    • Options
    • A. novas and supernovas
    • B. binaries
    • C. asteroids
    • D. quasars
    • Discuss
    • 4. Sir C.V. Raman was awarded Nobel Prize for his work connected with which of the following phenomenon of radiation?

    • Options
    • A. Scattering
    • B. Diffraction
    • C. Interference
    • D. Polarization
    • Discuss
    • 5. Of the four locations mentioned below the highest inside temperature will be attained in the pressure cooker operated with the pressure valve open

    • Options
    • A. at sea level
    • B. at the top of Mt. Everest
    • C. at a place in a valley below sea level
    • D. in an aeroplane flying at a height of 10,000 m with inside pressure maintained at the sea level
    • Discuss
    • 6. One watt-hour is equivalent to

    • Options
    • A. 6.3 x 103 J
    • B. 6.3 x 10-7 J
    • C. 3.6 x 103 J
    • D. 3.6 x 10-3 J
    • Discuss
    • 7. Out of the following pairs, which one does not have identical dimension?

    • Options
    • A. Moment of inertia and moment of a force
    • B. Work and Torque
    • C. Angular momentum and Planck's constant
    • D. Impulse and Momentum
    • Discuss
    • 8. Radiocarbon dating technique is used to estimate the age of

    • Options
    • A. rocks
    • B. monuments
    • C. soil
    • D. fossils
    • Discuss
    • 9. Light from the Sun reaches us in nearly

    • Options
    • A. 2 minutes
    • B. 4 minutes
    • C. 8 minutes
    • D. 16 minutes
    • Discuss
    • 10. Mirage is due to

    • Options
    • A. unequal heating of different parts of the atmosphere
    • B. magnetic disturbances in the atmosphere
    • C. depletion of ozone layer in the atmosphere
    • D. equal heating of different parts of the atmosphere
    • Discuss


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