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    Question

    When hot-water is sprinkled on a hotter glass tumbler,

    it breaks because –
    A glass suddenly expands Correct Answer Incorrect Answer
    B glass suddenly contracts Correct Answer Incorrect Answer
    C water evaporates Correct Answer Incorrect Answer
    D glass reacts chemically with water Correct Answer Incorrect Answer

    Solution

    If the poured liquid is relatively hotter or colder in comparison to the tumbler, it will break. When hot water is poured into a tumbler there is an uneven increase in the thermal expansion of the walls of the vessel.

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