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Mechanical Prop...

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  • Question 1
    4 / -1

    Writing on black board with a piece of chalk is possible by the property of

  • Question 2
    4 / -1

    A pin or a needle floats on the surface of water, the reason for this is

  • Question 3
    4 / -1

    A beaker of radius 15 cm is filled with a liquid of surface tension 0.075 N/m. Force across an imaginary diameter on the surface of the liquid is

  • Question 4
    4 / -1

    If temperature increases, the surface tension of a liquid

  • Question 5
    4 / -1

    Oil spreads over the surface of water whereas water does not spread over the surface of the oil, due to

  • Question 6
    4 / -1

    Force necessary to pull a circular plate of 5 cm radius from water surface for which surface tension is 75 dynes/cm, is

  • Question 7
    4 / -1

    The surface tension of a liquid

  • Question 8
    4 / -1

    Due to which property of water, tiny particles of camphor dance on the surface of water ?

  • Question 9
    4 / -1

    Consider a liquid contained in a vessel. The liquid solid adhesive force is very weak as compared to the cohesive force in the liquid. The shape of the liquid surface near the solid shall be

  • Question 10
    4 / -1

    If a glass rod is dipped in mercury and withdrawn out, the mercury does not wet the rod because

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