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Which of the following statement is wrong? Rough surfaces are better radiators than smooth surfaces, Highly polished mirror surfaces are very good radiators, Black surfaces are better absorbs that white ones, Black surfaces are better radiators then white ones
مندرجہ ذیل میں سے کون سا بیان غلط ہے؟
  1. Rough surfaces are better radiators than smooth surfaces
  2. Highly polished mirror surfaces are very good radiators
  3. Black surfaces are better absorbs that white ones
  4. Black surfaces are better radiators then white ones
Explanation
  • Rough and black surfaces are good radiators of heat.
  • Smooth and polished surfaces are poor radiators and good reflectors.
  • Black surfaces absorb and emit heat better than white surfaces.
  • Highly polished mirror surfaces reflect heat instead of radiating it.

Last verified on 05-06-2026

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