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NEET2007PhysicsThermal Properties of MatterActual

A black body is at 727^ C . It emits energy at a rate which is proportional to:

Options

  1. A(1000)^4
  2. B(1000)^2
  3. C(727)^4
  4. D(727)^2

Correct answer

B. (1000)^2

Step-by-step solution

According to Stefan's law Rate of radiated energy E T^4 where T= absolute temperature of a black body E (727+273)^4 or E [1000]^4

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