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Q & A

Q: A nuclear fusion lab requires very high temperature for the fusion reaction to takes place. Mr X says, "The temperature at Sun's surface is around 6000 K. We can use advanced lenses/mirrors to focus Sun's rays and get temperature much higher than 6000 K. Mr Y disagrees.

Who is right, Mr X or Mr Y and why?

A: Mr X is wrong as his statement does not take into account the second law of thermodynamics. It is not possible to get higher temperature than 6000 K as heat cannot flow from low temperature to high temperature.

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