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Two black plates of which the height and width are 0.5 m and 1.0 m are placed as given below. One plate is maintained at

Two black plates of which the height and width are 0.5 m and 1.0 m are placed as given below. One plate is maintained at 1000 ℃ and the other at 500 ℃. What is the net radiant heat exchange between the two plates?

0.5 m 0.5 m 1 m

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