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A glass U-tube is inverted with open ends of the straight limbs, of diameters 0.5 mm and 1.0 mm below the surface of water in a beaker. The air pressure in the upper part is increased until the meniscus in one limb is level with the water outside. Find the height (cm) of water in the other limb in nearest integer. : (Density of water is 10^(3)Kg//m^(3) and surface tension of water is 7.5 xx 10^(-2)N//m. Take contact angle theta = 0^(@)) |
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