(b) A sphere of 4 cm diameter behaves like a black body. At what rate is energy radiated by the sphere if it is maintained at 600°C? (The Stefan's constant = 5.67 10-*W m²K). [3]
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A sphere of 4 cm diameter behaves like a black body. At what rate is energy radiated by the sphere if it is maintained at 600°C? (The Stefan's constant = 5.67 10-*W m²K).
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