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JEE Main 2004
Exam
JEE Main
Year
2004
Subject
Physics
Chapter
Thermal Properties of Matter

JEE Main 2004 · Physics · Thermal Properties of Matter

If the temperature of the sun were to increase from T to 2 T and...

If the temperature of the sun were to increase from TT to 2T2 T and its radius from RR to 2R2 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∝AT4P \propto A T^4 and A∝r2A \propto r^2 P∝r2T4P \propto r^2 T^4
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