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    Question

    In Newton’s law of cooling, the rate of temperature

    fall is proportional to:
    A Temperature of body only Correct Answer Incorrect Answer
    B Absolute temperature Correct Answer Incorrect Answer
    C Temperature difference with surroundings Correct Answer Incorrect Answer
    D Surface area of body Correct Answer Incorrect Answer

    Solution

    According to Newton's law of cooling, the rate of loss of heat of a body is directly proportional to the difference in the temperatures between the body and its surroundings, provided the temperature difference is small. Mathematically, this can be expressed as:

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