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Physics GK · all questions

Mechanical Physics
practice.

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What is an ideal fluid?

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Which one of the following is not a result of surface tension?

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Pressure inside a soap bubble is

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Match the columns.
Column I Column II
a. Viscosity 1. Oil rises in the narrow long tube
b. Capillarity 2. tendancy to contract
c. Surface tension 3. Attractive between molecules of same substances
d. Cohesive force 4. Fluid friction

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A body is floating in a liquid partly immersed. The body and the liquid are taken to moon. The body

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The force of attraction applied between molecules of the same substance is called:

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Viscosity is the property of liquids by virtue of which they

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Assertion (A): When a ship enters a sea from a river, it rises a little.
Reason (R): The density of sea water is greater than that of river water.
In the context of the above statements, which of the following is true?

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In automobile hydraulic brakes work on

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Static science is associated with

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It which temperature is the density of water maximum?

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It is difficult to cut things with a blunt knife because

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Consider the following statements.
1. The liquid pressure is inversely proportional to the density of liquid.
2. The pressure exerted on the liquid doesn't depend upon the shape or size of the container.
Which of the statement(s) given above is/are correct?

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Water rises in plant fibres due to

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The working of an atomiser depend upon

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The density of water is 1 g./cc. This is strictly valid at

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The building and movement of ships is based on . . . . . . . .

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The property of matter by virtue of which a body tends to regain its original shape and size after the removal of deforming force is called

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The unit of strain is

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Assertion (A) Machine parts or jammed in winter.
Reason (R) The viscosity of lubricant used in machine parts increase at low temperature.

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