Find the surface area of a black body maintained at 400°K radiating the energy at the rate of 1459.2 J/s. (Given : 0 = 5.7 × 10-8 J / m? s°K*)
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A: B
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Q: r(cm) P(mW) 2.2 lo 15 O. 4 20 25 O. 2 Plot agraph between power and distance.
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Q: The filament of a light bulb has a surface area 64 mm2. The filament can be considered as a black…
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Q: What is the rate of energy radiation per unit area of a blackbody at a temperature of 280 K?
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Q: The coefficient of absorption of perfectly black body is (a) 1 (b) 0 (c) 0.75 (d) None of these
A: To find- Coefficient of absorption=? Given- A body is a perfectly black body
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