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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
Describe an experiment to show that a liquid exerts pressure at the bottom of the container in which it is kept.
The air pressure on our body is equal to ______ pressure.
Which of the following liquids has more viscosity?
The size of an air bubble rising up in water ______.
An object is put one by one in three liquids having different densities. The object floats with `1/9, 2/11` and `3/7` parts of their volumes outside the liquid surface in liquids of densities d1, d2 and d3 respectively. Which of the following statement is correct?
All flowing substances such as liquids or gases are called fluids.
Analogy
Liquid pressure: ______ :: Atmospheric Pressure: ______.
State whether the liquids and gases also exert pressure.
If the volume of the object is above the water surface, then the object is less dense.
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.
