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7th Class Science Sample Paper Science Olympiad Model Test Paper-21

  • question_answer
    When does the flow of heat from a hot object to a cold object stop?

    A) When the temperature of hot object gets lower than that of cold object.

    B) When the temperature of both the objects becomes equal.

    C) When the difference of their temperature becomes \[1{}^\circ C\]

    D) When temperature of both the objects becomes\[25{}^\circ C\].

    E) None of these

    Correct Answer: B

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