JEE Main & Advanced Physics Fluid Mechanics, Surface Tension & Viscosity / द्रव यांत्रिकी, भूतल तनाव और चिपचिपापन Question Bank Angle of Contact

  • question_answer
    For which of the two pairs, the angle of contact is same [J & K CET 2004]

    A) Water and glass; glass and mercury

    B)             Pure water and glass; glass and alcohol          

    C)             Silver and water; mercury and glass

    D)             Silver and chromium; water and chromium

    Correct Answer: B

    Solution :

                    Both liquids water and alcohol have same nature (i.e. wet the solid). Hence angle of contact for both is acute.


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