Cartesian Sign Convention | Full Explanation for Mirrors & Lenses | Class 10 Science | Light Chapter: Understanding the Cartesian Sign Convention is essential for solving mirror formula and lens formula problems in Class 10 Physics. In this video, we explain the sign convention used in ray optics, including the rules for mirrors (concave & convex) and lenses (convex & concave) in the simplest way. 🔍 In this video, you will learn: What is the Cartesian Sign Convention? Sign convention for mirrors Sign convention for lenses How to identify positive and negative signs Principal axis, pole, focus & centre of curvature Step-by-step explanation for class 10 How to apply sign convention in numerical problems ⭐ Key Points Covered Distances measured against the direction of light = negative Distances measured in the direction of light = positive Height measured upwards = positive Height measured downwards = negative 📚 Best For: Class 10 Light Chapter (Reflection & Refraction) CBSE Class 10 Board Exams NCERT Physics Ray Optics Basics Science Revision & Homework Help 🔔 Don’t Forget: ✔ Like the video ✔ Comment your doubts ✔ Subscribe for more Physics explanations #CartesianSignConvention #Class10Physics #LightChapter #RayOptics #MirrorFormula #LensFormula #PhysicsMadeEasy #NCERTClass10 #CBSEScience #ExamPreparation Welcome to Physics Academy 9th 10th, your one-stop channel for CBSE Class 9 and Class 10 Science – including Physics, Chemistry, and Biology! In this video, we’ll learn the complete explanation of “[Chapter Name]” based on the latest CBSE 2026 syllabus and NCERT textbook. Our aim is to make science easy, clear, and exam-oriented with step-by-step concepts, NCERT solutions, and important questions. 📘 What you’ll learn in this video: Full chapter explanation with examples Key concepts and formulas NCERT questions & answers Important board questions Quick summary and revision tips 📚 Best for: CBSE Class 9 & 10 Students Board Exam Preparation 2026 NCERT Science Learners 💡 Watch till the end and don’t forget to like 👍, share ↗️, and subscribe 🔔 to Physics Academy 9th 10th for more science videos every week! 📂 Playlists to Watch Next: 🔹 Class 10 Science Chapters → [Add Playlist Link] 🔹 Class 9 Science Chapters → [Add Playlist Link] 🔹 Physics | Chemistry | Biology → [Add Playlist Link] 📞 Connect With Us: Instagram – [Your Link] Telegram – [Your Link] Email – [Your Email (optional)] #physicsacademy #cbseclass10science #cbseclass9science #physicsacademy9th10th #ncertscience #scienceexplanation #class10boardexam #class9science #studywithme #cbse2026 #education #physics #chemistry #biology #ncertclass10