Calculate radiation power for sphere whose temperature is \( 227^{\circ} \mathrm{C} \), radius i...
Calculate radiation power for sphere whose temperature is \( 227^{\circ} \mathrm{C} \), radius is \( 2 \mathrm{~m} \) and emissivity is \( 0.8 \).
(a) \( 142.5 \mathrm{~kW} \)
(b) \( 1500 \mathrm{~W} \)
(c) \( 1255 \mathrm{~W} \)
(d) \( 1575 \mathrm{~W} \)
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