Pascal’s Law

IMPORTANT

Pascal’s Law: Overview

This topic covers concepts, such as, Pascal's Law, Hydraulic Lift, Force on Side Wall of Liquid Vessel & Torque on Side Wall of Liquid Vessel etc.

Important Questions on Pascal’s Law

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An open cubical tank was initially fully filled with water. When the tank was accelerated on a horizontal plane along one of its side it was found that one third of volume of water spilled out. The acceleration was

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The area of cross-section of the wider tube shown in figure is 800 cm2. If a mass of 12 kg is placed on the massless piston, the difference in heights h in the level of water in the two tubes is

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A bucket contains water filled upto a height= 15 cm. The bucket is tied to a rope which is passed over a frictionless light pulley and the other end of the rope is tied to a weight of mass which is half of that of the (bucket+water). The water pressure above the atmospheric pressure at the bottom is

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An open cubical tank completely filled with water is kept on a horizontal surface. Its acceleration is then slowly increased to 2 m s-2 as shown in the figure. The side of the tank is 1m. Find the mass of water that would spill out of the tank.

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A spherical tank of 1.2 m radius is half filled with oil of relative density 0.8. If the tank is given a horizontal acceleration of 10 m/s2. Calculate the maximum pressure on the tank ?

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For the system shown in the figure, the cylinder on the left at L has a mass of 600 kg and cross-sectional area of 800 cm2. The piston on the right, at S, has cross-sectional area 25 cm2 and negligible weight. If the apparatus is filled with oilρ=0.75gm cm-3. Find the force F required to hold the system in equilibrium

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Find the mechanical advantage of the hydraulic lift.

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Mechanical advantage of a hydraulic lift is directly proportional to the:

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Two syringes of different cross-section (without needle) filled with water are connected with a tightly fitted rubber tube filled with water. Diameters of the smaller piston and larger piston are 1 cm and 3 cm respectively. If a force of 10 N is applied to the smaller piston then the force exerted on the larger piston is

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To what height should a cylindrical vessel be filled with a homogeneous to make the force with which the liquid pressure on the sides of the vessel equal to the force exerted by the liquid on the bottom of the vessel ?

 

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Which of the following work on the Pascal's principle?

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Hydraulic brakes works on the principle of

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The mechanical advantage of a hydraulic lift is directly proportional to

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Hydraulic brakes works on the principle of

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The mechanical advantage of a hydraulic lift is directly proportional to

EASY
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A piston of cross-sectional area 100 cm2 is used in a hydraulic pressure to exert a force of 107 dyne on the water. The cross-sectional area of the other piston which supports a truck of mass 2000 kg is

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The pressure of the gas in a cylindrical chamber is p0. The vertical force exerted by the gas on its hemispherical end is

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EASY
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A closed rectangular tank is completely filled with water and is accelerated horizontally with an acceleration towards right. Pressure is

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i maximum at, and ii minimum at

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A hydraulic lift can lift a maximum load of 3000 kg wt.  The area of cross section of the piston carrying the load is 4.25×10-2 m2. The maximum pressure the smaller piston would have to bear is

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A closed tank filled with water is mounted on a cart. The cart moves with an acceleration a on a plane road. What is the difference in pressure of points B and A, shown in figure?
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