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प्रश्न
In what direction does the buoyant force on an object immersed in a liquid act?
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उत्तर
An object immersed in a liquid experiences buoyant force in the upward direction.
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संबंधित प्रश्न
State whether the following statement is true or false :
The buoyant force depends on the nature of object immersed in the liquid
A body while floating sinks deeper in a liquid of low density than in a liquid of high density.
When does an object float or sink when placed on the surface of a liquid ?
What is the unit of relative density?
What is meant by pressure? State its S.I. unit.
The diagram below in Fig. 4.12 shows a device which makes the use of the principle of transmission of pressure.
- Name the parts labelled by the letters X and Y.
- Describe what happens to valves A and B and to the quantity of water in the two cylinders when the lever arm is moved down.
- Give reasons for what happens to valves A and B in part (ii).
- What happens when the release valve is opened?
- What happens to valve B in cylinder P when the lever arm is moved up?
- Give a reason for your answer in part (v).
- State one use of the above device.
In what direction and at what point does the buoyant force on a body due to a liquid act?
A body experiences an upthrust F1 in river water and F2 in sea water when dipped up to the same level. Which is more, F1 or F2? Give reason.
It is easier to lift a heavy stone under water than in air. Explain.
Select the correct option.
The unit Nm2 is the unit of
