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Properties of Matter question

2018 · Shift 1 · Q39
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Properties of Matter question

2018 · Shift 1 · Q39

JEE AdvancedPhysicsProperties of MatterMultiple correct+4 / −2
A uniform capillary tube of inner radius rrr is dipped vertically into a beaker filled with water. The water rises to a height hhh in the capillary tube above the water surface in the beaker. The surface tension of water is σ.\sigma .σ. The angle of contact between water and the wall of the capillary tube is θ.\theta .θ. Ignore the mass of water in the meniscus. Which of the following statements is (are) true?
  1. A
    For a given material of the capillary tube, hhh decreases with increase in rrr
  2. B
    For a given material of the capillary tube, hhh is independent of σ\sigmaσ
  3. C
    If this experiment is performed in a lift going up with a constant acceleration, then hhh decreases
  4. D
    hhh is proportional to contact angle θ\thetaθ
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