Q. |
| A hollow sphere of radius R A cube of side R and thin circular plate of radius R made up of the same material, are all heated to 20 degree Celsius above room temperature, When left to cool in the room, which of them will reach the room temperature first? |
| (a)Circular plate | | (b)Cube | (c)Sphere  | | (d)All of them will reach the room temperature at the same time |
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