Bubble in air have …… free surface...

Bubble in air have …… free surface

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Bubble in water have ….. Free surface

Rain drop have ……. Free surface

There is a soap bubble of radius 2.4xx10^(-4)m in air cylinder which is originally at a pressure of 10^(5)(N)/(m^(2)) . The air in the cylinder is now compressed isothermally until the radius of the bubble is halved. (the surface tension of the soap film is 0.08Nm^(-1)) . The pressure of air in the cylinder is found to be 8.08xx10^(n)(N)/(m^(2)) . What is the value of n?

Why colours and lubricating oil have less surface tension ?

An air bubble inside water. The refractive index of water is 4/3 . At what distance from the air bubble should a point object be placed so as to form a real image at the same distance from the bubble:-

Soap bubble form in air .The excess pressure inside a soap bubble is twice the excess pressure in second bubble .The first bubble has n times the volume of the second bubble , finf n ….

The radius of a soap bubble is r. the surface tension of soap solution is T, keeping temperature constant, the radius of the soap bubble is doubled the energy necessary for this will be-

Find the pressure in a bubble of radius 0.2 cm formed at the depth of 5cm from the free surface of water . The surface tension of water is 70 dyne cm^(-1) and its density is 1gcm^(-3) . Atmospheric pressure is 10^(6) dyne cm^(-2) .The gravitational acceleration is 980cms^(-2) .

A hemispherical glass body of radius 10 cm and refractive index 1.5 is silvered on its curved surface . A small air bubble is 6 cm below the flat surface inside it along the axis. The position of the image of the air bubble made by the mirror is seen :

KUMAR PRAKASHAN-MECHANICAL PROPERTIES OF FLUIDS -SECTION-A Try Yourself (VSQs)

What is the effect of increasing temperature on surface tesion ?
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Define angle of contact .
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Give reason : Wing of duck cannot wet in water
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Liquid is stick to the glass then angle of contact for liquid glass wi...
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The angle of contact between mercury and glass is ……. Angle
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The cohesive force between the molecules of liquid is more than the co...
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The cohesive force between the molecules of liquid is less than the co...
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A large pressure exerted on the surface of liquid having shape of …….....
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Bubble in water have ….. Free surface
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Bubble in air have …… free surface
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Rain drop have ……. Free surface
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Write the equation of excess pressure (pressure difference) for the bu...
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At a depth of 1000m in an ocean (a) What is the absolute pressure? (b)...
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What is capillary ?
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Give two practical illustrations of caplilary.
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When the capillary is kept in water , water ….. In capillary while it ...
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Write the formula for height of liquid column in capillary .
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Smaller the radius of the capillary tube ,….. The height of the colum...
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If meniscus is convex then liquid ……. In capillary and it is concave t...
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Give reason : Lighting of lamp is due to wick of lamp .
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