CSIR NET Physical Science Exam > CSIR NET Physical Science Videos > CSIR NET Crash Course for Physical Science > Opto-electronic Devices (Solar Cells, Photo-detectors, Leds)
Opto-electronic Devices (Solar Cells, Photo-detectors, Leds) Video Lecture | CSIR NET Crash Course for Physical Science - CSIR NET Physical Science
FAQs on Opto-electronic Devices (Solar Cells, Photo-detectors, Leds) Video Lecture - CSIR NET Crash Course for Physical Science - CSIR NET Physical Science
| 1. What are opto-electronic devices? |  |
Ans. Opto-electronic devices are electronic devices that can source, detect, and control light. This includes solar cells, photo-detectors, and LEDs.
| 2. How do solar cells work? | |
Ans. Solar cells convert sunlight into electricity through the photovoltaic effect. When sunlight hits the solar cell, it creates an electric current by separating positive and negative charges in the material.
| 3. What are the applications of photo-detectors? | |
Ans. Photo-detectors are used in various applications such as light sensors, optical communications, imaging devices, and medical instruments for detecting light and converting it into an electrical signal.
| 4. What is the function of LEDs? | |
Ans. Light Emitting Diodes (LEDs) are semiconductor devices that emit light when an electric current passes through them. They are widely used in lighting, displays, indicators, and automotive applications.
| 5. How can opto-electronic devices contribute to renewable energy? | |
Ans. Opto-electronic devices like solar cells play a crucial role in generating renewable energy by converting sunlight into electricity. This helps reduce reliance on fossil fuels and decreases carbon emissions.
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Nov 24, 2024 Last updated |
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