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प्रश्न
Why do we feel light on our feet when standing in a swimming pool with water up to our armpits ?
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उत्तर
We feel light on our feet when standing in a swimming pool with water up to our armpits because of the buoyant force. It exerts an upward force on our body and makes us feel our apparent weight which is less than our actual weight.
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संबंधित प्रश्न
In which direction does the buoyant force on an object due to a liquid act ?
A body experiences the same buoyant force when it floats or sinks in water.
The density of a body which sinks in water is ......... than 1000 Kg m-3.
What is a density bottle? How is it used to find the density of a liquid?
Why does a piece of ice float on water?
Explain why an iron needle sinks in water, but a ship made of iron floats on water.
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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.
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- What happens when the release valve is opened?
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- Give a reason for your answer in part (v).
- State one use of the above device.
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