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Two very wide parallel glass plates are held vertically at a small separation , and dipped in water of surface tension . 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

a)

b)

c)

d)


Question ID - 57493 | Toppr Answer

Two very wide parallel glass plates are held vertically at a small separation , and dipped in water of surface tension . 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

a)

b)

c)

d)

1 Answer - 5876 Votes

3537

Answer Key : (a) -

(a)

Here, the free liquid surface between the plates will be cylindrical which is curved along one axis (parallel to the plates). The radius of curvature of meniscus, . For cylindrical surface



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