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The cylindrical tube of a spray pump has radius R, one end of which has n fine holes, each of radius r. If the speed of the liquid in the tube is V, the speed of the ejection of the liquid through the holes is:
A.
B.
C.
D.
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Samarthan Test Series : Complete Class 11th + 12th Syllabus Full Syllabus 01
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When an empty bottle is closed air tight and pushed inside water it bounces back when it is released. This is because _______.
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Similar Questions
- 1)
When an empty bottle is closed air tight and pushed inside water it bounces back when it is released. This is because _______.
- 2)When objects are immersed in a fluid, they experience which of the following forces?
- 3)
A barometer is constructed using a liquid (density =760kg/m³). What would be the height of the liquid column, when a mercury barometer reads 76cm ?
(Density of mercury =13600kg/m³) - 4)
A liquid does not wet the solid surface if angle of contact is
- 5)A thin flat circular disc of radius 4.5 cm is placed gently over the surface of water. If surface tension of water is then the excess force required to take it away from the surface is:
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- 7)If a soap bubble expands, the pressure inside the bubble
- 8)A soap bubble, having radius of 1 mm, is blown from a detergent solution having a surface
tension of The pressure inside the bubble equals at a
below the free surface of water in a container.
is:
- 9)A certain number of spherical drops of a liquid of radius 'r' coalesce to form a single drop of radius 'R' and volume 'V'. If 'T' is the surface tension of the liquid, then:
- 10)Two non-mixing liquids of densities ρ and nρ(n > 1) are put in a container. The height of each liquid is h. A solid cylinder of length L and density d is put in this container. The cylinder floats with its axis vertical and length pL(p < 1) in the denser liquid. The density d is equal to: