RAJASTHAN ­ PET Rajasthan PET Solved Paper-2009

  • question_answer
    A liquid does not wet the sides of a solid, if the angle of contact is

    A)  obtuse           

    B)  \[90{}^\circ \]

    C)  acute             

    D)  zero

    Correct Answer: B

    Solution :

     The liquids which do not wet the solid have obtuse angle of contact. For mercury and glass, the angle of contact is\[135{}^\circ \]


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