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If the temperature of the sun were to increase from T to 2 T and its radius from R to 2 R , then the ratio of the radiant energy received on earth to what it was previously will be

Options

  1. A4
  2. B16
  3. C32
  4. D64

Correct answer

D. 64

Step-by-step solution

According to stefan's law, P A T^4 and A r^2P r^2 T^4

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