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Question 30932
JEE Physics · Hard

Fluid Mechanics: Capillarity MCQ

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CapillarityHardQuestion 30932

Question

Water rises in a capillary tube of radius r to height h. If r is halved, height becomes:
  1. A
    h/2
  2. B
    2h
    Correct
  3. C
    4h
  4. D
    h

Correct answer

2h

Explanation

h = 2T cosθ/(ρgr). If r → r/2, then h → 2h.

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