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प्रश्न
Describe a simple experiment to demonstrate that a liquid enclosed in a vessel exerts pressure in all directions.
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उत्तर
Take a can or large plastic bottle filled with water. Place it on a horizontal surface. Make a series of holes in the wall of the vessel anywhere below the free surface of the liquid. The water spurts out through each hole. This shows that the liquid exerts pressure at each point on the wall of the bottle.
Liquid exerts pressure at all points in all directions
संबंधित प्रश्न
A body sinks in a liquid A but floats in a liquid B. The density of liquid A is ....... than the density of liquid B.
When a boat is partially immersed in water, it displaces 600 kg of water. How much is the buoyant force acting on the boat in newtons ? (g = 10 m s-2)
Which of the following will sink or float on water? (Density of water = 1 g Cm-3)
body C having density 1100 kg m-3
The density of water is 1.0 g Cm-3. The density of iron is 7.8 × 10″3 g Cm-3. The density of mercury is 13.6 g Cm-3.
Ans the following:
Will a piece of iron float or sink in water?
Pressure at the free surface of a water lake is P1, while at a point at depth h below its free surface is P2. (a) How are P1 and P2 related? (b)Which is more P1 or P2?
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Calculate:
- Thrust and
- Pressure exerted on the table top
Take 1 kgf = 10 N.
A piece of wood if left under water comes to the surface. Explain the reason.
A body will experience minimum upthrust when it is completely immersed in :
What is meant by up thrust?
State whether true or false. If false, correct the statement.
The weight of fluid displaced determines the buoyant force on an object.
