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

  • question_answer
    In a capillary tube experiment, a vertical 30 cm long capillary tube is dipped in water. The water rises up to a height of 10cm due to capillary action. If this experiment is conducted in a freely falling elevator, the length of the water column becomes           [Orissa JEE 2003; AIEEE 2005]

    A) 10 cm

    B)                      20 cm

    C)             30 cm 

    D)             Zero

    Correct Answer: C

    Solution :

                    The length of the water column will be equal to full length of capillary tube.    


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