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🔍 PREVIEW MODE – Only you can see this. Back to Admin EduTek Lesson Notes Shop Print PDF Home › SS › Physics › Optical Instruments SS 2 Optical Instruments Physics SS 2 Third Term Introduction to Optical Instruments Optical instruments are devices that use lenses, mirrors, or a combination of both to form images, magnify objects, or analyse light. They are fundamental to science, medicine, astronomy, photography, and everyday life. 📌 Key Concepts: Optical instruments rely on the principles of re [Preview only]