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| 1. |
The temperature of the surface of the sun is approximately 6000 K. If we take a big lens and focus the sun rays, can we produce atemperatuer of 8000 K? |
| Answer» Solution :No, ACCORDING to second law of thermodynamics heat itself cannot be transferred from a COLD body to a HOT body i.e., the CREATION of temperature of 8000 K by transferring heat from a cold body at 6000 K is not possible by means of a lens. This is the violation of the second law of thermodynamics | |