Multiple choice general knowledge science & technology

What determines the color of light?

  1. its intensity

  2. its wavelength

  3. its source

  4. None of the Above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Wavelength is correct. The color of light is determined by its wavelength - different wavelengths in the visible spectrum correspond to different colors (red ~700nm to violet ~400nm). Intensity affects brightness, not color. The source determines the type of light produced, not its specific color.

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