Which of the following is not the characteristics of Indium arsenide photovoltaic detector used in infrared analyzers for hydrocarbons?
A. It operates at ambient temperature
B. Has maximum detectivity at 3.4µm
C. Sensitivity increases at longer wavelength
D. It has no response to radiation of wavelength greater than 4µm
Answer:C
Which of the following is not the characteristics of Indium arsenide photovoltaic detector used in infrared analyzers for hydrocarbons?
A. It operates at ambient temperature B. Has maximum detectivity at 3.4µm C. Sensitivity increases at longer wavelength D. It has no response to radiation of wavelength greater than 4µm
Explanation: The sensitivity of Indium arsenide photovoltaic detector decreases at longer wavelength. It is insensitive to radiation having wavelength greater than 4µm.