Q. Pyrometer which react to all wavelengths of incident radiant energy are known as

  • (A) Multicolour pyrometers
  • (B) Total radiation pyrometers
  • (C) Polarising pyrometers
  • (D) Wein's displacement law
πŸ’¬ Discuss
βœ… Correct Answer: (D) Wein's displacement law

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