A body radiates heat at the rate of 5 cal/m² s when its temperature is 227°C. The heat radiated by the same body when its temperature is 727°C is (a) 0 cal/m² s (b) 20 cal/m²s (c) 40 cal/m² s (d) 80 cal/m²s
A body radiates heat at the rate of 5 cal/m² s when its temperature is 227°C. The heat radiated by the same body when its temperature is 727°C is (a) 0 cal/m² s (b) 20 cal/m²s (c) 40 cal/m² s (d) 80 cal/m²s
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Transcribed Image Text:A body radiates heat at the rate of
5 cal/m² s when its temperature is 227°C. The
heat radiated by the same body when its
temperature is 727°℃ is
(a) 0 cal/m² s
(b)
20 cal/m²s
(c) 40 cal/m²s
(d) 80 cal/m²s
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