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GCSE Physics · key term
The part of the electromagnetic spectrum that the human eye can detect.
Used by AQA, Edexcel and OCR
Specification 4.6.2.6 · Paper 2
Revise: Visible lightVisible light is the part of the electromagnetic spectrum that our eyes detect. White light contains a range of visible wavelengths. Each colour occupies its own narrow band of wavelength and frequency: red light has a longer wavelength and lower frequency than violet light.
Specification 5.10, 5.12, 5.22 · Paper 1
The part of the electromagnetic spectrum that human eyes can detect.
Revise: EM Spectrum GroupingsVisible light is part of a much larger family of electromagnetic waves. The electromagnetic spectrum is the full range of these waves. Although we give parts of it different names, it is continuous: there are no gaps between the named groupings.
The limited range of electromagnetic radiation that the human eye can detect.
Electromagnetic radiation that can be detected by the human eye.
Specification P5.2e, P5.2f · Paper 2 (Foundation), Paper 4 (Higher)
The limited part of the electromagnetic spectrum that can be detected by the human eye.
Revise: Visible spectrum detectionHuman vision does not cover that whole range: our eyes detect only the narrow band called visible light. Electromagnetic radiation outside this band may be present even though we cannot see it.
If asked what the eye detects, state that visible light is only a limited range of electromagnetic frequencies.
Red is at the lower-frequency end of visible light; violet is at the higher-frequency end.
Do not say that ultraviolet itself is the visible glow. In fluorescence, ultraviolet is absorbed and visible light is then emitted.
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