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  1. When temperature difference between liquid and its surroundings is doubled, the rate of loss of heat will:

    2. A.

     Remain same
    B.

     Double
    C.

     Three times
    D.

     Four times

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    Answer : Option B

    Explanation :

    According to Newton’s law of cooling, the rate of loss of heat of a body is directly proportional to the difference between the temperature of hot body and temperature of the surroundings, provided that the difference in temperature is small enough.

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