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The net heat interchange between non-black bodies at temperature T 1 and T 2 is given by

The net heat interchange between non-black bodies at temperature T 1 and T 2 is given by Correct Answer f 12 F 12 A 1 σ (T 14 – T 24)

The factor f 12 is called the interchanging factor from surface 1 to surface 2.

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