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Electronic Devices & CircuitsOptoelectronic Devices

The spectral response of a photodetector describes how its sensitivity varies primarily with?

  • AWavelength of incident light
  • BCollector resistance only
  • CSupply frequency only
  • DHeat-sink size
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Correct Answer: A. Wavelength of incident light
Explanation: Spectral response specifies detector responsivity or sensitivity as a function of optical wavelength.
Reference: Standard optoelectronics: spectral response
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