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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?


When an air bubble is released from the bottom of the tank, as the bubble rises up, the pressure inside the bubble decreases and hence the size of bubble expands.
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State Archimedes’s principle.

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?

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

What is a barometer?

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