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प्रश्न
Why do sea divers need special protective suit?
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उत्तर
The sea divers need special protective suit to wear because in deep sea, the total pressure exerted on the diver's body is much more than his blood pressure. To withstand it, he/she needs to wear a special protective suit.
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संबंधित प्रश्न
What do you mean by buoyancy?
In which direction does the buoyant force on an object due to a liquid act ?
Name the scientist who gave he magnitude of buoyant force acting on a solid object immersed in a liquid.
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Describe a simple experiment to demonstrate that a liquid enclosed in a vessel exerts pressure in all directions.
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- Name the parts labelled by the letters X and Y.
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- Give reasons for what happens to valves A and B in part (ii).
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- 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.
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(a) Calculate upthrust on the block if it is held fully immersed in water.
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(c) What will be the upthrust on block while floating?
Take density of water = 1000 kg m-3.
