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M

Mr. Dubey • 100.64K Points
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Q. An optical pyrometer works on the principle of

  • (A) Expansion of fluids
  • (B) Mono-chromatic radiation
  • (C) Thermo-electric effect
  • (D) Total radiation
  • Correct Answer - Option(B)
  • Views: 451
  • Filed under category Heat Engines
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