The glowing filament in a lamp is radiating energy at a rate of 100 J/s. The filament’s surface area is 1.8 × 10−4 m2 an

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answerhappygod
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The glowing filament in a lamp is radiating energy at a rate of 100 J/s. The filament’s surface area is 1.8 × 10−4 m2 an

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The glowing filament in a lamp is radiating energy at a rate of 100 J/s. The filament’s surface area is 1.8 × 10−4 m2 and
it is at a temperature of 1831 oC. What is the emissivity of the filament?
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