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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A cubical block (of side 2 m) of mass 20 kg slides on inclined plane lubricated with the oil of viscosity η = 10^−1 with constant velocity of 10 m/s. Find out the thickness of the layer of liquid (take g=10 m/s^2).

A cubical block (of side 2 m) of mass 20 kg slides on inclined plane lubricated with the oil of viscosity η = 10^−1 with constant velocity of 10 m/s. Find out the thickness of the layer of liquid (take g=10 m/s^2).

A long capillary tube of radius 1 cm open at both ends is filled with water and placed vertically. What will be the height of water column left in the capillary ? (Surface tension of water = 72 dyne/cm and density of water = 1 g/cm^3.)