Question:

The surface area of a black body is 5×10-4 m2 and its temperature is 727°C. the energy radiated by it per minute is (σ=5.67×10-8  Jm-2 S-1 K-4)

Options :

  • (a) 1.7 x 10^3 J
  • (b) 2.5 x 10^2 J
  • (c) 8 x 10^3 J
  • (d) 3 x 10^4 J

Answer :

(a) 1.7 x 103 J

Answer Steps :

step 1

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