Question

in parabolic reflector type coolers even temperature up to 1800 Celsius to 2000 Celsius can be attained how

Answer 1

A parabolic (or paraboloid or paraboloidal) reflector (or dish ormirror) is a reflective surface used to collect or project energy such as light, sound, or radio waves. Its shape is part of a circular paraboloid, that is, the surface generated by a parabolarevolving around its axis.
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