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…showed last 75 words of 606 total…, and gamma rays. Light traditionally refers to the range of frequencies that can be seen by humans. The direction of the electric field in an electromagnetic wave is referred to as polarization. A wave whose electric field is oscillating in the vertical direction is said to be polarized in the vertical direction. The photons of such a wave would interact with matter differently than the photons of a wave polarized in the horizontal direction.