easy · Enhanced ACT science

A graph plots the wavelength of light (%nm%) on the x-axis and its frequency (%THz%) on the y-axis. The curve starts at the top-left (Wavelength 400, Frequency 750) and ends at the bottom-right (Wavelength 700, Frequency 430).

What is the relationship?

  1. Wavelength is the same for all frequencies.
  2. Wavelength and frequency are directly proportional.
  3. Wavelength and frequency are inversely related.
  4. Frequency increases as the wavelength increases.

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