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Capillary Rise

Dip thin tubes in water and mercury. Find how high the liquid climbs, or how far it sinks.

Physics · Class 11 · Capillary rise · 8 simulations. For JEE, NEET and your boards.

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What you'll learn

  1. How high it climbs: Capillary rise: h = 2S cos θ / (ρ g r)
  2. Glass that repels: The contact angle decides up or down
  3. Swap the liquid: Same tube, new liquid: h ∝ S/ρ
  4. Too short to spill: A short tube: h × R stays the same
  5. Tilt the tube: A leaning tube: same height, longer column
  6. Tube in a lift: A tube in a lift: g becomes g + a
  7. Cone-shaped tube: A cone-shaped tube: cos(θ − α/2)
  8. Joined tubes: Only the glass at the top edge counts