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Mercury has an angle of contact equal to `140^@` with soda lime glass. A narrow tube of radius 1.00mm made of this glass is dipped in a trough containing mercury.By what amount does the mercury at the temperature of the experiment is 0.465 `Nm^-1`. Density of mercury =`13.6 times 10^3 kg m^-3`

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Find the depression of the meniscus in the capillary tube of diameter 0.4 mm dipped in a beaker containing mercury. (Density of mercury = 13.6 times 10^3 kg m^-3 and surface tension of mercury = 0.49 Nm^-1 and angle of contact = 135^@ ).

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Find the depression of mensicus in the when a capillary tube of diameter 0.2 mm is dipped in a beaker containg mercury. density of mercury is 13.6xx10^(-3)Kgm^(-3) , angle of contact is 130^(@) surface tension of mercury is 0.49Nm^(-1),g=9.8ms^(-2) .

The lower end of a capillary tube of diameter 2.00mm is dipped 8.00cm below the surface of water in a beaker. What is the pressure required in the tube in order to blow a hemispherical bubble at its end in water? The surface tension of water at temperature of the experiments is 7.30 times 10^2 Nm^-1 .1 atmospheric pressure =1.01 times 10^5 Pa density of water =1000 kg//m^3,g=9.80 ms^-2 . Also calculate the excess pressure.

The terminal velocity of a copper ball of radius 2.0 mm falling through a tank of oil at 20^@C is 6.5 cm s^-1 . Compute the viscosity of the oil at 20^@C . Density of oil is 1.5 times 10^3kg m^-3 .density of copper is 8.9 times 10^3 kg m^-3 .

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Find the height to which the water rise when a capillary tube of radius 0.24 mm is dipped vertically in a beaker containing water. Surface tension of water is 7.0xx10^(-2)Nm^(-1) , angle of contact is 0^(@) and density of water is 1000Kgm^(-3) .

NCERT TELUGU-MECHANICAL PROPERTIES OF FLUIDS -EXERCISE
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