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Jayakant ------ ------ Grade: 11
        

A solid sphere,a cube and a circular plate all made of the same material and having the same mass are heated to 300 centigrade and are allowed to cool under the same circumstances.Which of them will cool the fastest and slowest?Please explain.

7 years ago

Answers : (2)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear Jayakany


Here is the concept of exposed area to the atmosphere.


we know that for same volume sphere has minimum surface area,plate has maximum surface area.


so  sphere cool slowest  and plate coo fastest


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7 years ago
rishi raj mishra
24 Points
										
since we know that sphere has minimum surface area and plate has maximum surface area for same volume.and as per newtons law of cooling heat loss is directly propotional to exposed area.so here Cube will be cooled faster than sphere but slower than circular plate means 1.circular plate 2. cube 3. sphere
28 days ago
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