InterviewSolution
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InterviewSolution
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Water rises in a capillary tube a height h. Choose false statement regarding capillary rise from the following.A. On the surface of jupiter, height will be less than hB. In a lift moving up with contact acceleration height is less than hC. On the surface of moon the height is more than hD. In a lift moving down with constant acceleration height is less than h |
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Answer» Correct Answer - D The height (h) to which water rises in a capillary tube is given by `h = (2T cos theta)/(r rho g)` When lift moves down with constant acceleration, height is more than h, because effective value of acceleration due to gravity decreases, hence h increases. |
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