Question 15

Take a small cotton boll and place it in a tumbler/bowl filled with water. Observe it it for at least 10 minutes. will it float or sink in water and why ?

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Solution

Cotton boll initially floats on water but after few minutes, it sinks because it absorbs water.

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The density of water is 1000 kg/m^3. If a solid of relative density 1.5 is placed in water, will it sink or float? Why?

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