A body radiates heat at the ate 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

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A body radiates heat at the ate 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

10 cal/m²-s

20 cal/m²-s

40 cal/m²-s

80 cal/m²-s

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Which one of the following constants is not related to radiation?

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