If more air is pushed in a soap bubble t...

If more air is pushed in a soap bubble the pressure in it

decreases

increases

remains same

becomes zero

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Molecular forces exist between the molecules of a liquid in a container. The molecules on the surface have unequal force leading to a tension on the surface. If this is not compensated by a force, the equilibrium of the liquid will be a difficult task. This leads to an excess pressure on the surface. The nature of the meniscus can inform us of the direction of the excess pressure. The angle of contact of the liquid decided by the forces between the molecules, air and container can make the angle of contact. If the excess pressure in a soap bubble is p , the excess pressure in an air bubble is

Statement-1 : If there is a soap bubble in air then excess pressure inside it is (4T)/(R) , where T is surface tension of soap and R is the radius of the bubble. Statement-2 : If there is a water drop in air then excess pressure inside it is (2T)/(R) Statement-3 : If there is an air bubble in water then excess pressure inside it is (4T)/(R)

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HC VERMA ENGLISH-SOME MECHANICAL PROPERTIES OF MATTER-Objective-1

When a metal wire elongates by hanging a load on it, the gravitational...
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By a surface of a liquid we mean
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An ice cube is suspended in a vacuum in gravity free hall. As the ice...
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When water droplets merge to form a bigger drop
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The dimension ML^-1T^-2 can correspond to
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If two soap bubbles of different radii are connected by a tube
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Figure shows a capillary tube of radius r dipped into water. If the a...
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The excess pressure inside a soap bubble is twice the excess pressurre...
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Which of the following graphs may represent the relation between the c...
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Water rises in a vertical capillary tube up to a length of 10 cm. If t...
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A 20 cm long capillary tube is dipped in water. The water rises up to ...
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Viscosity is property of
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The force of viscosity is
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The viscous force acting between two layers of a liquid is given by F/...
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A raindrop falls near the surface of the earth with almost uniform vel...
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A piece of wood is taken deep inside a long column of water and releas...
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A solid sphere falls with a terminal velocity of 20 ms^-1 in air. If i...
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A spherical ball is dropped in a long column of a viscous liquid. The ...
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