JEE · NEET Previous Year Question

Four pieces of iron heated in a furnace to different temperatures show different colours listed below. Which one has the highest temperature

Topic: NEET PYQ

Answer: A. Full step-by-step solution below.

  1. AWhite
  2. BYellow
  3. COrange
  4. DRed

Correct answer: A

Solution

(a) At low temperature short wavelength radiation is emitted. As the temperature rise colour of emitted radiation are in the following order
Red→Yellow→Blue→White (at highest temperature)

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