sign convention of lens class 10 physics icse cbse| refraction of light lens numericals lens formula

In this video, we explain the sign convention of light for Class 10 Physics in a simple and clear way. You will learn how to assign positive and negative signs to distances, heights, and focal length while solving numerical problems of mirrors and lenses. 📘 Topics covered: What is sign convention of light Sign convention for spherical mirrors Sign convention for lenses Real vs virtual images Tips to avoid common mistakes in numericals This video is helpful for CBSE, ICSE, and State Board Class 10 students preparing for exams. 👉 Don’t forget to Like, Share, and Subscribe for more Class 10 Physics concepts explained easily!