Multiple choice question for engineering Set 1 1. Optical radiations involve _________ a) optoelectric devices b) biological devices c) mechanical devices d) chemical devices AnswerAnswer: a [Reason:] Emission and absorption of optical radiations are carried out by making use of optoelectric devices. 2. Photoelectric transducers consist of _______ a) 1 transducer b) 3 transducers c)…
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