55.9 MB (10.5 MB compressed)
5475 x 3568 pixels
46.2 x 30.2 cm ⏐ 18.2 x 11.9 in (300dpi)
ER DEGGINGER / SCIENCE PHOTO LIBRARY ER DEGGINGER / SCIENCE PHOTO LIBRARY
Red, blue and green light producing white light. Colourless or white light as perceived by human eye actually consists of many colours or wavelengths of light.
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