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A newspaper article claims that a solar furnace can concentrate the light of the sun into...

A newspaper article claims that a solar furnace can concentrate the light of the sun into a small point, so that the temperature at this point is greater than the surface temperature of the sun. Is this possible? Explain why or why not.

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Answer #1

A solar furnace is a structure that uses concentrated solar power to produce high temperatures, usually for industry. Parabolic mirrors or heliostats concentrate light (Insolation) onto a focal point. The temperature at the focal point may reach 3,500 °C (6,330 °F), and this heat can be used to generate electricity, melt steel, make hydrogen fuel or nanomaterials. This attained temperature of focal point is less than the actual temperature of sun that is nearly 5500 degree Celsius. So temperature more than temperature of sun at focal point is not possible because inside sun this high temperature attained due to continuous fusion reaction performed inside it .

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