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Mr. Dubey • 100.64K Points
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Q. Pick out the wrong statement.

  • (A) The emissivity of a surface decreases, if it gets corroded by atmospheric environment
  • (B) The emissivity of a surface increases with increase in surface roughness
  • (C) The emissivity of a polished surface is quite low
  • (D) The emissivity of a non-metallic surface decreases with increase in the temperature
  • Correct Answer - Option(A)
  • Views: 184
  • Filed under category Heat Transfer
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