Image: Units visible spectrum
Size of this preview: 800 × 237 pixels. Other resolutions: 320 × 95 pixels | 1,406 × 416 pixels.
Original image (1,406 × 416 pixels, file size: 17 KB, MIME type: image/png)
Title: Units visible spectrum
Usage Terms: Public domain
License: PD
Attribution Required?: No
Image usage
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