Light emitting diodes (LED) are used to directly convert electrical energy into light, thereby reducing wastage of electricity. You can read about LIGO India – Gravitational Wave Detector in India in the given link.
Further readings:
- Topic-Wise GS 3 Questions for UPSC Mains
- Science & Technology Notes For UPSC – General Science Notes
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Related Links |
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UPSC Mains General Studies Paper-III Strategy, Syllabus & Structure |
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