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In an electric furnace used for refining steel, the temperature is monitored by measuring the radiant power emitted through a small hole of area 0.5 cm2. The furnace acts like a blackbody radiator. If it is to be maintained at a temperature of 1650e C, at what level should the power radiated through the hole be maintained?

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Related Test: Basic Physics Practice Test: Temperature and Kinetic Theory


In an electric furnace used for refining steel, the temperature is monitored by measuring the radiant power emitted through a small hole of area 0.5 cm<sup>2</sup>. The furnace acts like a blackbody radiator. If it is to be maintained at a temperature of 1650e C, at what level should the power radiated through the hole be maintained?






 
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