The statement “they do not emit light” is not a general property of semiconductors. Certain semiconductor materials and devices, such as LEDs and semiconductor lasers, can emit light when electrons and holes recombine. Semiconductors generally have conductivity between conductors and insulators, their conductivity increases with temperature, and their electrical properties can be modified by controlled doping.
Which of the following is not a property of semiconductors?
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Question context
This question is part of 📡 Electronics and Communication Engineering (ECE) within the broader 🛠️ Engineering Essentials subject and appears in the PTS Pakistan Testing Service preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.