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39. Water rises against gravity in a capillary tube when its one end is dipped into water because

(a) Pressure below the meniscus is less than atmospheric pressure

(b) Pressure below the meniscus is more than atmospheric pressure

(c) Capillary attracts water

(d) Of viscosity

Ans. a

PrevPrevious15. A closed rectangular tank is completely filled with water and is accelerated horizontally with an acceleration a towards right. Pressure is (i) maximum at, and (ii) minimum at

Next40. A capillary tube of radius R is immersed in water and water rises in it to a height H. Mass of water in the capillary tube is M. If the radius of the tube is doubled, mass of water that will rise in the capillary tube will now beNext

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