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  4. The temperature of a perfect black body is 727° C and it: area is 0.1 m 2. If Stefan's constant is 5.67 × 10-8 watt / m 2- s - K 4 then heat radiated by it in 1 minute is :

Q. The temperature of a perfect black body is and it: area is . If Stefan's constant is then heat radiated by it in minute is :

Thermal Properties of Matter Report Error

Solution:

As we use



and total heat

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