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प्रश्न
Describe a simple experiment to show that at a given depth, a liquid exerts same pressure in all directions.
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उत्तर
Experiment: We have often seen children playing with polythene bag filled with water and having small holes at various places on this bag and sprinkling water on others. This is because water enclosed in bag exerts pressure in all directions.
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संबंधित प्रश्न
Name the quantity whose one of the units is pascal (Pa).
Fill in the blank with suitable word :
In fluids (liquids and gases), pressure acts in....................directions, and pressure.................as the depth increases.
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.
Describe an experiment to show that liquid pressure depends on the density of liquid.
Name two common fluids.
How much pressure do we carry on our heads? why don't we feel it?
Viscosity depends on the pressure of a liquid.
State whether true or false. If false, correct the statement.
The shape of an object helps to determine whether the object will float or not
A liquid flowing out of a very small opening of a tube or tap comes out in the form of fine drops and not as a continuous stream. Why?
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.
