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UPSC CSE
Science & Technology
Physics
Light and Optics
Optical Instruments
Key Discoveries
Sub-topic 3 of 3
Science & Technology
Sub-topics in
Light and Optics
Reflection and Refraction
01
Lenses and Mirrors
02
Optical Instruments
03
Science & Technology
·
Key Discoveries
Optical Instruments — Key Discoveries
Updated 9 Mar 2026
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Light and Optics
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Reflection and Refraction
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Lenses and Mirrors
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