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A hollow sphere of radius R, a hollow cube of side R and thin circular plate of radius R made up of the some material are all heated to 20 degree C above room temperature. When left to cool in the room, which of them will reach the room temperature first ?

1)Circular plate

2)cube

3)sphere

4)all of them will reach the room temperature at the same time


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    sphere

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  • Exam: Heat QUESTIONS





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