MHT CET Physics question
Two very wide parallel glass plates are held vertically at a small separation r and dipped in water of surface tension S. Some water climbs up in the gap between the plates. If is the atmospheric pressure, then the pressure of water just below the water surface in the region between the two plates is
Answer: (A)
Solution
The meniscus between the plates is cylindrical with radius of curvature , so the pressure drop below it is and the water pressure
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