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प्रश्न
Describe an experiment to prove that the pressure in a liquid increase with depth.
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उत्तर
Take a plastic bottle. Punch three holes on its side in the same direction, but at different heights. Now pour some water into it and let it flow through the holes. Observe the flow of water.
- Inference:
The water comes out from all the holes with a different force and falls on the table at points that are at variable distances from the bottle. Water from the lowest hole comes out with the greatest force and falls at a point that is at the maximum distance from the bottle. Water from the topmost hole comes out with the least force and falls at the point that is at the minimum distance from the bottle.
- Reason:
This activity confirms that the pressure in a liquid varies with the depth of the point of observation in it.
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संबंधित प्रश्न
Fill in the blank with suitable word :
Force acting on a unit area is called...................
Fill in the blank with suitable word :
If the area of a snow shoe is five times....................... than the area of an ordinary shoe, then the pressure of a snow shoe on the snow is five times...............
Pressure in a liquid ................with the depth.
Describe a simple experiment to show that at a given depth, a liquid exerts same pressure in all directions.
Liquid pressure decreases with the decrease of depth.
Figure shows a container filled with water. Which of the following statements is correct about pressure of water?
The pressure in a liquid is the same at all depths.
Analogy
Liquid pressure: ______ :: Atmospheric Pressure: ______.
Differentiate Liquid from Gas
Assertion (A): The force acting on the surface of a liquid at rest, under gravity, in a container is always horizontal.
Reason (R): The forces acting on a fluid at rest have to be normal to the surface.
