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संबंधित प्रश्न
Give reason of Water pipes burst in severe winter.
Give reason of Ice floats on water.
How does the anomalous expansion of water help aquatic organisms in cold climates?
In cold countries, the water pipes are covered with poor conductors. Why?
The following figure shows a metal cylinder, containing boiling water. One half side A is polished and another half, B is painted black. Two thin metal sheets X and Y are painted black and have one rubber stopper fixed with wax on each sheet. These sheets are equidistant from the boiling water (container A, B) as shown in the diagram. What would you expect to happen after a few minutes? Give a reason for your answer.
What is the criterion of choosing the two metals for a bimetal strip?
Observe the given graph and answer the following questions:
- Name the process represented in the figure.
- At what temperature does this process take place?
In a region with a cold climate the aquatic animals can survive at 4 °C, because _______.
