Ray Optics | Class 12 Physics In Odia | CHSE | Refraction, Prism, Dispersion & Lens Formula Part-02

Welcome to Part-02 of Ray Optics for Class 12 Physics (CHSE Odisha). In this video, Biswajit Sir covers all advanced topics of refraction, lenses, prisms, dispersion, and optical instruments in simple and clear Odia language, following the NCERT/CHSE syllabus. 🔍 Topics Covered in Part-02 Refraction through spherical surfaces Refraction through a lens Lens formula (1/f = 1/v – 1/u) Derivation of lens formula Magnification for lenses Lens maker formula Combination of lenses (equivalent focal length) Refraction through a prism Angle of deviation Dispersion of light Optical instruments (intro): Human eye Camera Microscope Telescope Important CHSE/NCERT numerical problems 🎯 Who Should Watch? ✔ CHSE Odisha Class 12 students ✔ NCERT Physics learners (Odia Medium) ✔ Students preparing for CHSE Board Exam 2026 ✔ Anyone struggling with lens derivations & prism concepts 📘 Why This Video Is Important All derivations explained step-by-step Diagram-based explanations Perfect for board exams Odia medium easy understanding Helpful for both concept clarity & numerical solving