Written Laser Hair Removal Practice Exam

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Which color has the shortest wavelength in visible light?

  1. Red

  2. Green

  3. Blue

  4. Violet

The correct answer is: Violet

Violet has the shortest wavelength in visible light. When we look at the visible light spectrum, from longest wavelength to shortest, the order goes from red, orange, yellow, green, blue, indigo, to violet. Violet light has the shortest wavelength among the colors of the visible spectrum, and therefore the correct answer is D.

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