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प्रश्न
Describe an experiment to show that liquid pressure depends on the density of liquid.
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उत्तर
LIQUID PRESSURE DEPENDS ON THE ’DENSITY OF LIQUID: Take two identical balloons attached to one end of each of two identical glass tubes opened at both ends.
Fill tube (a) with milk and tube (b) with alcohol to the same height.
We notice that balloon attached to the tube (a) bulged more than balloon attached to the tube (b). This shows that the same height of milk exerts more pressure than alcohol. Since the density of milk (1.03) is more than density alcohol (0.8).
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संबंधित प्रश्न
What force acting on an area of 0.5 m2 will produce a pressure of 500 Pa ?
Fill in the blank with suitable word :
In order to sink in a fluid, the density of an object must be .................. than the ................ of the fluid.
Gases exert pressure in all directions.
How much pressure do we carry on our heads? why don't we feel it?
The pressure at the bottom of a tank containing liquid does not depend upon the ______.
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?
Water (or) liquids exert pressure on ______.
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
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.
