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4.If temperature of surface of sun becomes half then the enegy emitted by it to earth per second will reduce to a)1/2 b)1/4 c)1/16 d)1/64 |
| Answer» 4.If temperature of surface of sun becomes half then the enegy emitted by it to earth per second will reduce to a)1/2 b)1/4 c)1/16 d)1/64 | |