Question
Science & TechnologyEnergy, Nuclear and Mobility TechnologiesPower Grids, Energy Efficiency and Smart-Energy SystemsMedium
Question details
- Type:
- Statement based
- Skill:
- Concept understanding
- Tags:
- Power Grids, Energy Efficiency and Smart-Energy Systems
- Related topics:
- Electronics, Microelectronics and Embedded Systems
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What is the difference between a CFL and an LED lamp? 1. To produce light, a CFL uses mercury vapour and phosphor while an LED lamp uses semi-conductor material. 2. The average life span of a CFL is much longer than that of an LED lamp. 3. A CFL is less energy-efficient as compared to an LED lamp. Which of the statements given above is/are correct?
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Question 64 · Power Grids, Energy Efficiency and Smart-Energy Systems · Science & Technology · UPSC Prelims 2011 (GS)