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JEE Main & Advanced Sample Paper JEE Main Sample Paper-42

  • question_answer
    A body cools from \[100{}^\circ C\] to \[90{}^\circ C\] in 20 min, it will cool down from \[110{}^\circ C\] to \[100{}^\circ C\] in [Assume same surroundings]

    A)  20 min                       

    B)  less than 20 min

    C)  more than 20 min      

    D)  30 min

    Correct Answer: B

    Solution :

    Hotter body emits radiation at a faster rate as compared to colder body.


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