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qUESTIONS

MCQs-PYQs-12th-jee

A metallic sphere of mass M falls through glycerin with a terminal velocity v. if we drop a ball of mass 8M of same metal into a column of glycerin. The terminal velocity of the ball will be.

MCQs-PYQs-12th-jee

The velocity of water in river is 180 km h¯¹ near the surface. If the river is 5 m deep, then the coefficient of viscosity of water is

MCQs-PYQs-12th-jee

A metallic block of density 5 gm cm³ and having dimensions 5 cm × 5 cm x 5 cm is weighed in water. Its apparent weight will be

MCQs-PYQs-12th-jee

If pressure at half the depth of a lake is equal to 2/3 pressure at the bottom ofthe lake then what is the depth of the lake

MCQs-PYQs-12th-jee

Water is flowing in a pipe of diameter 4 cm with a velocity 3 m/s. The water then enters into a tube of diameter 2 cm. The velocity of water in the other pipe is

MCQs-PYQs-12th-jee

A tank is filled with water up to a height H. Water is allowed to come out of a hole P in one of the walls at a depth D below the surface of water. Express the horizontal distance x in terms of H and D

MCQs-PYQs-12th-jee

A ball of radius r and density p falls freely under gravity through a distance h before entering water. Velocity of ball does not change even on entering water. If viscosity of water is n, the value of h is given by

MCQs-PYQs-12th-jee

Three liquids of densities d, 2d & 3d are mixed in equal proportions of weights. The relative density of the mixture is

MCQs-PYQs-12th-jee

The density p of water of bulk modulus B at a depth y in the ocean is related to the density at surface po by the relation

MCQs-PYQs-12th-jee

If 2 liquids of same masses but densities p₁ & P2 respectively are mixed, then density of mixture is given

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