Stefan-Boltzmann law applies to _____________ body?
Correct answer: A. Black
- A. Black
- B. White
- C. Grey
- D. Any colour
Explanation
The basic Stefan-Boltzmann law, E = σT⁴, describes total emission from an ideal black body. Real grey bodies use the modified form E = εσT⁴, so the expected answer here is black.
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