In this detailed Physics lecture, we explore the Compound Microscope — one of the most important optical instruments in Ray Optics. You’ll learn how magnification is produced by the combination of lenses and how it changes under different viewing conditions. This topic is vital for Class 12 Boards, JEE Main & Advanced, and NEET 2025 aspirants. 🔹 What You’ll Learn in This Lecture: Basic construction and working of a compound microscope Role of objective and eyepiece lenses in image formation Step-by-step ray diagram explanation Derivation of magnification formula Magnification when final image forms at infinity (normal adjustment) Magnification when final image forms at least distance of distinct vision (D = 25 cm) Comparison between simple and compound microscope Real-life applications: how microscopes are used in biology, medicine & research Common mistakes students make in sign convention & derivations 💡 Suitable for: 🔹 Class 12 CBSE, ISC, and State Boards 🔹 JEE Main & Advanced aspirants 🔹 NEET UG students preparing for Physics 🔹 Students targeting competitive exams & school tests 📢 Stay Connected: 👍 Like the video to support our free content 💬 Drop your doubts in the comments – I personally reply 📲 Share with your friends preparing for JEE & NEET 🔔 Subscribe and turn on notifications for regular updates 👨🏫 Taught by: Prem Prakash Vedi, Senior Physics Faculty 🎓 Experience: 11+ years in mentoring JEE & NEET toppers 🏆 Produced top ranks and 95%+ scorers consistently 🔗 Follow Us on Social Media for More Updates! Youtube Channel / @3stepsacademyscience Instagram / 3stepsacademy Telegram Channel https://t.me/Threestepsacademy #neetphysics #CompoundMicroscope #Magnification #RayOptics #Class12Physics #JEEPhysics #NEETPhysics #OpticalInstruments #BoardExamPreparation #PhysicsByPremSir #PhysicsLecture