Which of the following is not a suitable method for reducing loss of heat from...

PHYSICS
WAEC 1990

Which of the following is not a suitable method for reducing loss of heat from a piece of hot iron?

  • A. Wrapping it in cotton wool
  • B. painting it black
  • C. Placing it in a vacuum
  • D. Placing it on rubber supports

Correct Answer: B. painting it black



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