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JEE Main2002PhysicsThermal Properties of MatterActual

Two spheres of the same material have radii 1 ~m and 4 ~m and temperatures 4000 ~K and 2000 ~K respectively. The ratio of the energy radiated per second by the first sphere to that by the second is

Options

  1. A1 : 1
  2. B16 : 1
  3. C4 : 1
  4. D5 : 3

Correct answer

A. 1 : 1

Step-by-step solution

Energy radiated R^2 T^4

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