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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 :
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...............
Describe a simple experiment to show that at a given depth, a liquid exerts same pressure in all directions.
Describe an experiment to show that liquid pressure depends on the density of liquid.
Which of the following liquids has more viscosity?
The pressure of a liquid column ______ with the depth of the column.
Viscosity depends on the pressure of a liquid.
All flowing substances such as liquids or gases are called fluids.
Name an instrument used to measure the difference in the liquid pressure.
A solid floats in liquid with a portion of it being submerged. Then ______.
- The liquid exerts an upthrust equal to the weight of the solid
- The weight of the dispersed liquid is equal to the weight of solid
- Solid exerts a force equal to its weight on liquid
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.
