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Which system may include lenses, mirrors, slits, diaphragm etc?(a) Radiant system(b) Optical system(c) Cardiac system(d) Photo systemI had been asked this question in exam.I want to ask this question from Methods of Monitoring Foetal Heart Rate in section Foetal Monitoring Instruments of Biomedical Instrumentation

Answer»

The correct choice is (b) Optical system

Explanation: An optical system for PRODUCING a parallel beam of filtered light for passage through an absorption cell (cuvette). The system may include lenses, mirrors, SLITS, DIAPHRAGM, etc. A detecting system for the measurement of unabsorbed RADIANT energy, which could be the human eye, a barrier-layer cell, phototube or photo-multiplier TUBE.



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