Physics · JEE

Important Questions: Pressure due to a fluid column, Pascal's law and its applications, effect of gravity on fluid pressure for JEE

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Part of Properties of Solids and Liquids in JEE Main Physics.

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Q1PhysicsUnit 7: Properties of Solids and Liquids

In a hydraulic lift, used at a service station the radius of the large and small piston are in the ratio of

20: 1 .

What weight placed on the small piston will be sufficient to lift a car of mass 1500 kg?

Q2PhysicsUnit 7: Properties of Solids and Liquids

Calculate the pressure exerted by a man weighing 85 kg standing on a piece of tile. The dimensions of his feet are

30.2 \mathrm{cm} \times 15 \mathrm{cm}

Q3PhysicsUnit 7: Properties of Solids and Liquids

Which of the following is a consequence of atmospheric pressure?

Q4PhysicsUnit 7: Properties of Solids and Liquids

If the air density were uniform, then the height of the atmosphere above the sea level to produce a normal atmospheric pressure of

1.0 \times 10^{5}

Pa is (density of air is

1.3 \mathrm{kg} / \mathrm{m}^{3}, \mathrm{g}=10 \mathrm{m} / \mathrm{s}^{2}

Q5PhysicsUnit 7: Properties of Solids and Liquids

In the integral type of power brake, the diaphragm acts directly on the hydraulic piston in the

Q6PhysicsUnit 7: Properties of Solids and Liquids

Standard atmospheric pressure is equivalent to pressure given by

Q7PhysicsUnit 7: Properties of Solids and Liquids

Assertion Pascal's law is the working principle of hydraulic lift. Reason Pressure

=\frac{\text {thrust}}{\text {area}}

Q8PhysicsUnit 7: Properties of Solids and Liquids

In a dam,where water has a height of

h

then centre of pressure is

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Key areas include Pressure due to a fluid column, Pascal's law and its applications, effect of gravity on fluid pressure. Prioritise these before moving to edge cases.

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