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A spherical body of 2.0 cm diameter is maintained at $597^{0} C$ . Assume that it radiates as if it were a blackbody, at what rate (in watts) is energy radiated from the sphere (approx)?

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detailed solution

Correct option is B

A=surface area =4πr2=4π0.01 m2=1.26×10−3 m2P=AσT4=1.26×10−35.67×10−88704=41 W

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A spherical body of 2.0 cm diameter is maintained at 5970C. Assume that it radiates as if it were a blackbody, at what rate (in watts) is energy radiated from the sphere (approx)?

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A spherical body of 2.0 cm diameter is maintained at $597^{0} C$ . Assume that it radiates as if it were a blackbody, at what rate (in watts) is energy radiated from the sphere (approx)?