MCQOPTIONS
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| 1. |
Two spheres made of same material have radii in the ratio 2:1. if both the spheres are at same temperature, then what is the ratio of heat radiation energy emitted per second by them? |
| A. | 1: 4 |
| B. | 4: 1 |
| C. | 3: 4 |
| D. | 4: 3 |
| Answer» C. 3: 4 | |