JEE Main & Advanced Physics Transmission of Heat Question Bank Conduction

  • question_answer
    A piece of glass is heated to a high temperature and then allowed to cool. If it cracks, a probable reason for this is the following property of glass                                        [CPMT 1985]

    A)            Low thermal conductivity

    B)            High thermal conductivity

    C)            High specific heat

    D)            High melting point

    Correct Answer: A

    Solution :

               When a piece of glass is heated, due to low thermal conductivity it does not conduct heat fast. Hence unequal expansion of it?s layers crack the glass.


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