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The portion of the electromagnetic spectrum that our eyes can see.
The portion of the electromagnetic spectrum that our eyes can see. A range of wavelengths that we perceive as the colours red, orange, yellow, green, blue, indigo and violet. It is only a small part of the full range of wavelengths of electromagnetic radiation, which extends well beyond the visible portion in both directions.
A range of wavelengths that we perceive as the colours red, orange, yellow, green, blue, indigo and violet. It is only a small part of the full range of wavelengths of electromagnetic radiation, which extends well beyond the visible portion in both directions.