Скачать или смотреть Class 12 Physics Ray Optics Lecture 2 | Power of Lens, Prism Formula & Minimum Deviation Derivation

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Welcome to Science Sutra’s Class 12 Physics Crash Course for the Bihar Board 2026 Exam!
In Lecture 2 of Ray Optics, Durganand Sir explains all important derivations and formulas that often appear in board and competitive exams.
This video covers:
🔹 Power of Lens — Concept, formula & practical units
🔹 Derivation of Power Relation between focal length and lens combination
🔹 Prism Concepts — Refraction through a prism, minimum angle of deviation derivation, and prism formula derivation
🔹 Important numerical examples and board-level tips

Whether you’re preparing for Bihar Board 2026, CBSE, or JEE / NEET foundation, this lecture will strengthen your conceptual base and exam-oriented problem-solving.
Watch till the end for Durganand Sir’s quick revision tricks and expected board-exam questions.

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