Spectral response
What Spectral response means in Physics A-Level, as defined for AQA.
Definitions of Spectral response
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Reference: AQA
Chosen so it matches the wavelength of the optical source, for example a silicon photodiode for near-infrared or visible light.
Relative sensitivity plotted against wavelength, with the eye responding across roughly 400 nm to 700 nm.
Topics that use Spectral response
- Photodiode (A-level only) (AQA A-Level)
- Physics of vision (A-level only) (AQA A-Level)
Related terms
- Accommodation
- Band gap and photon energy
- Cornea
- Fovea
- Photo-conductive mode
- Photocurrent
- Photocurrent against voltage at fixed irradiance
- RC time constant
Using Spectral response in the exam
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