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  • Question
  • It is more difficult to walk on a sandy road than on a concrete road because


  • Options
  • A. sand is soft and concreter is hard
  • B. the friction between sand and feet is less than that between concrete and feet
  • C. the friction between sand and feet is more than that between concrete and feet
  • D. the sand is grainy but concrete is smooth

  • Correct Answer
  • the friction between sand and feet is less than that between concrete and feet 


  • Physics problems


    Search Results


    • 1. Of the following properties of a wave, the one that is independent of the other is its

    • Options
    • A. amplitude
    • B. velocity
    • C. wavelength
    • D. frequency
    • Discuss
    • 2. Magnetism at the centre of a bar magnet is

    • Options
    • A. minimum
    • B. maximum
    • C. zero
    • D. minimum or maximum
    • Discuss
    • 3. Sound waves in air are

    • Options
    • A. transverse
    • B. longitudinal
    • C. electromagnetic
    • D. polarised
    • Discuss
    • 4. The absorption of ink by blotting paper involves

    • Options
    • A. viscosity of ink
    • B. capillary action phenomenon
    • C. diffusion of ink through the blotting
    • D. siphon action
    • Discuss
    • 5. One thousand microns is equal to

    • Options
    • A. 10-3m
    • B. 10-6m
    • C. 10-9m
    • D. 10-12m
    • Discuss
    • 6. Nuclear sizes are expressed in a unit named

    • Options
    • A. Fermi
    • B. angstrom
    • C. newton
    • D. tesla
    • Discuss
    • 7. 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
    • 8. 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
    • 9. 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
    • 10. out of the following, which is not emitted by radioactive substance?

    • Options
    • A. Electrons
    • B. Electromagnetic radiations
    • C. Alpha particles
    • D. Neutrons
    • Discuss


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