Class 10 Physics – Focal Length, Center of Curvature & Principal Axis | Sindh Board Description: In this video, we will learn what is focal length, center of curvature, and principal axis according to the Class 10 Physics Sindh Board / Karachi Board syllabus. These concepts are the basic foundation of Light – Reflection by Curved Mirrors and are very important for board exams. We will explain: 🔹 Definition of focal length 🔹 Center of curvature (C) 🔹 Principal axis 🔹 Pole of mirror 🔹 Radius of curvature 🔹 Difference between convex and concave mirror concepts 🔹 Easy examples for better understanding This video is specially designed for Class 10 students following the Sindh Textbook Board and Karachi Board Physics curriculum. If you find this lesson helpful, don’t forget to like, comment, and subscribe! ⭐ Special Keywords (SEO Optimized) Class 10 physics focal length Center of curvature Sindh board Principal axis class 10 physics Focal length concave mirror Focal length convex mirror Physics chapter Light Sindh board Class 10 Karachi board physics Reflection by curved mirrors Sindh board physics important topics Light chapter class 10 definitions 🔍 Searching Keywords (High-ranking SEO) What is focal length class 10 Focal length and center of curvature explained Principal axis easy definition class 10 Sindh board class 10 physics Light chapter Concave and convex mirror class 10 Class 10 physics important short questions Karachi board physics Light chapter Focal point and center of curvature Basic concepts of curved mirrors Class 10 physics lecture in Urdu 🏷️ YouTube Tags (Copy–Paste) class 10 physics sindh board physics karachi board physics focal length class 10 center of curvature class 10 principal axis class 10 concave mirror focal length convex mirror focal length physics light chapter curved mirrors class 10 reflection of light class 10 class 10 physics lectures sindh textbook physics science class 10 urdu physics lectures