In a capillary tube, the water rises to a height of 4 c m . If the cross-sectional area of the tube were one-fourth, water would have risen to a height of

Question

In a capillary tube, the water rises to a height of 4 c m . If the cross-sectional area of the tube were one-fourth, water would have risen to a height of, 2 c m, 4 c m, 8 c m, 16 c m

MARKS App · Accepted Answer

h = 2 T cos ⁡ θ r d g ⇒ r 1 h 1 = r 2 h 2 and A = 2 π r 2 ⇒ r α A ∴ A 1 h 1 = A 2 h 2 ⇒ A × 4 = A 4 × h 2 ⇒ h 2 = 8 c m

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