The color _______ has the longest wavelength.

The color _______ has the longest wavelength.

  • (A) Blue
  • (B) Red
  • (C) Green
  • (D) Yellow

The correct answer is (B) Red. Red light has the longest wavelength in the visible spectrum, while blue and violet have the shortest.

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Related MCQs:

 ‘NATO’ is an abbreviation of:

  • (A) North Atlantic Treaty Organization
  • (B) Non-Aligned Treaty Organization
  • (C) Non-Aligned Trading Organization
  • (D) North American Transport Organization

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