O-LevelPhysicsLight5054/12 · May/June 2022 · Q261 Mark

Violet and indigo light have the shortest wavelengths in the spectrum of visible light. Which three colours, in order of increasing wavelength, immediately follow indigo?

Ablue → green → orange

Bblue → green → yellow

Cgreen → blue → yellow

Dyellow → green → orange

✓ Correct answer

B: blue → green → yellow

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