Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2004

  • question_answer
    An electric heater, kept in vacuum, is heated continuously by passing electric current. Its temperature

    A)  will go on rising with time

    B)  will stop rising after sometime as it will lose heat to the surroundings by conduction

    C)  will rise for sometime and thereafter will start falling

    D)  will become constant after sometime because of loss of heat due to radiation

    Correct Answer: D

    Solution :

    Since heater is kept in vacuum its temperature will rise for sometime and becomes steady after sometime because of loss of heat due to radiation.


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