Ray Optics Last-Minute Revision: 3 PW Videos to Finally Get Ray Diagrams Right: With the CBSE Class 12 Physics Board Exam on 20 February, students are now in the final revision phase. At this stage, smart revision is more important than starting new topics from the Physics syllabus Class 12. If Ray Optics is still confusing, especially ray diagrams, sign conventions, lens formulas, and mirror cases, then focused video revision can help you gain clarity quickly. Considering the Physics weightage Class 12, Ray Optics remains one of the most scoring chapters in Physics Class 12.

Ray Optics is a high weightage chapter in CBSE Class 12 Physics, where questions are often direct, diagram-based, and formula-oriented. A proper last-minute revision can help you correct mistakes in ray diagrams, revise important formulas quickly, strengthen conceptual clarity, and improve confidence before the exam. Here are 3 powerful PW videos that can help you finally master Ray Optics before 20 Feb.

Video 1: Ray Optics One Shot (Class 12)

This video covers complete NCERT-based Ray Optics, including reflection, refraction, mirror formula, lens formula, ray diagrams, and important derivations. It focuses on board-level explanations and frequently asked questions. For last-minute revision, it helps quickly revise theory, fix diagram mistakes, and strengthen derivations that are often asked in 3–5 mark questions.

Video 2: Ray Optics One Shot (Class 12)

This lecture explains ray diagrams, sign convention tricks, lens maker formula, magnification, and concept-based numericals in detail. It focuses more on understanding the logic behind image formation and common student errors. For last-minute revision, it improves conceptual clarity and reduces calculation mistakes in numericals.

Video 3: Full Syllabus One Shot (Covers Optics)

This video provides a rapid revision of the complete Class 12 Physics syllabus, including a summary of Ray Optics and Optical Instruments. It highlights key formulas, derivations, and frequently tested board concepts. For final revision, it works as a quick memory booster and helps revise optics along with other important chapters in a limited time.

Also Check : CBSE Class 12 Physics Answer Key 2026

CBSE Class 12 Physics Answer Key 2026

With barely half a day left before the 20 February Physics Board Exam, this is truly the final revision window. At this stage, focus only on quick formula revision, ray diagrams, and important derivations instead of starting anything new. Use these three videos for a rapid recap, practice a few key diagrams by hand, and enter the exam hall calm, clear, and confident.