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If we exhaust the air from a sealed tin can, what will happen to it?


If the air from the sealed tin can is exhausted, the tin can will squeeze due to inward force exerted by atmospheric pressure.
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Barometer tube of mercury barometer is one meter long. Would you require a longer or a shorter tube if the mercury were replaced by water in the tube?

State Archimedes’s principle.

What is a barometer?

An air bubble is released from the bottom of tank. What happens to the size of air bubble as it rises upward in the tank?

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