Ray Optics and Optical Instruments 06|Refraction spherical surface,Lens maker formu|Physics Class 12

Ray Optics and Optical Instruments 06 | Refraction at Spherical Surface & Lens Maker's Formula | Physics Class 12

Welcome to Shree Ram Educators!
In this Class 12 Physics lecture, we dive into two very important concepts of Ray Optics:

🔹 Refraction at Spherical Surfaces – Derivation, sign conventions & numerical applications
🔹 Lens Maker’s Formula – Relation between focal length, refractive index & radii of curvature

This session is fully exam-oriented and follows the CBSE 2025–26 syllabus.


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What you will learn:

✔️ Formula for refraction at spherical surface
✔️ Understanding real & virtual images formation
✔️ Derivation of Lens Maker’s Formula
✔️ Effect of refractive index on focal length
✔️ Important numerical problems for boards & competitive exams


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Suitable for:

✓ CBSE Class 12 Physics Students
✓ JEE/NEET Aspirants
✓ Quick revision & concept strengthening


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