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Question
Two black discs each of diameter 50 cm are placed parallel to each other concentrically at a distance of one meter. The discs are maintained at 1000 K and 500 K. Calculate the heat flow between the discs when no other surface is present
Options:
A .  317.27 W
B .  417.27 W
C .  517.27 W
D .  617.27 W
Answer: Option B
Answer: (b).417.27 W

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