Give reason: Hot water when poured in glass beaker, it cracks.
Give reason:
Hot water when poured in glass beaker, it cracks.
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1 Answers
1. When hot water is poured in a glass beaker the inner surface of the glass expends on heating.
2. Since glass is a bad conductor of heat, the heat from inside does not reach the outside surface so quickly.
3. Hence the outer surface does not expand thereby causing a crack in the glass.
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