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JEE Physics · Medium

Fluid Mechanics: Capillarity MCQ

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CapillarityMediumQuestion 30950

Question

If capillary tube is not long enough for full capillary rise, the liquid:
  1. A
    Overflows
  2. B
    Stops rising and angle of contact adjusts
    Correct
  3. C
    Rises at constant speed
  4. D
    Falls back

Correct answer

Stops rising and angle of contact adjusts

Explanation

Liquid doesn't overflow. Instead, meniscus angle adjusts so that the capillary height formula is still satisfied with the available length.

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