Which of the following detectors does not require a battery and is also known as barrier layer cell?
(a) Photomultiplier tube
(b) Photovoltaic cell
(c) Photoemissive tubes
(d) Photo reflector
The question was asked in an interview.
My question is from Absorption Instrumentation and Block Diagram Representation topic in division Colorimetry and Spectrometry of Analytical Instrumentation