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प्रश्न
Explain the following
A hollow glass sphere which floats with its entire volume submerged in water at 4°C, sinks when water is heated above 4°C.
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उत्तर
On heating water above 4°C, the density of water decreases. As a result, the upthrust acting due to water on hollow glass sphere also decreases, which causes it to sink.
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संबंधित प्रश्न
Give reason of Ice floats on water.
What do you mean by the anomalous expansion of water?
At what temperature is the density of water is maximum? State its value.
Draw a graph to show the variation in density of water with temperature in the range from 0°C to 10°C.
Describe an experiment to show that water has maximum density at 4°C. What important consequences follow this peculiar property of water? Discuss the importance of this phenomenon in nature.
Write a short note.
Anomalous behaviour of water
