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Thrust exerted by an iron cuboid when placed on sand is equal to
If weight of an object is equal or less than upthrust acting on it then object would
The pressure exerted by water (density = 10^{3} kg/m^{3}) on the bottom surface (2m × 4m) of tank having dimensions 2m × 4m × 2m is
A sharp edge blade is more effective in cutting than a blunt blade due to
For a given applied thrust, pressure exerted on a surface by a sharp pin is
The neck and bottom of a bottle are 2cm and 20 cm in diameter respectively. The cork is pressed with same pressure. If the cork is pressed with a force of 1.2 kgf on the neck of the bottle, the force exerted on the bottom of the bottle will be
An object exerts a force F on a surface of surface area A. The pressure P acting on the surface is given by
To observe and compare the pressure exerted by three different faces of a cuboid on sand, the following Cuboid is available to you:
(A) Wooden cuboid of dimension 20 cm x 30 cm x 50 cm
(B) Aluminium cuboid of dimension 3 cm x 6 cm x 12 cm
(C) Iron cuboid of dimension 5 cm x 10 cm x 15 cm
(D) Iron cuboid of dimension 20 cm x 30 cm x 15 cm
The best choice from the practical point of view would be:
A rectangular block of wood of dimensions 40cm x 20cm x 10cm is kept on a table top. The pressure is greatest when it is rested on
16 videos69 docs56 tests

16 videos69 docs56 tests
