Law of Symmetry in Crystals 🔥 AOS, POS & COS in Cubic Crystal | Solid State Lecture 3 (Part 2) | VBU

🧪 *SOLID STATE – LECTURE 3 (PART 2) | LAW OF SYMMETRY* Namaskar students! Welcome back to *Chemistry with Gautam* 🎓 Is lecture mein hum Solid State Chemistry ke ek important topic — *Law of Symmetry in Crystals* — ko simple language aur diagrams ke through detail mein samjhenge. Special focus ek *cubic crystal* par rahega, jisme hum Axis of Symmetry, Plane of Symmetry aur Centre of Symmetry ko identify karna seekhenge. 📚 *TOPICS COVERED IN THIS LECTURE:* ✅ Introduction to the Law of Symmetry ✅ *AOS – Axis of Symmetry* ✅ *POS – Plane of Symmetry* ✅ *COS – Centre of Symmetry* ✅ Detailed symmetry analysis of a cubic crystal ✅ Number and identification of symmetry axes in a cube ✅ Identification and counting of symmetry planes ✅ Understanding the centre of symmetry ✅ Important concepts for university examinations 🎯 *WHO SHOULD WATCH THIS VIDEO?* This lecture is useful for: • B.Sc. Chemistry Semester 2 students • VBU Hazaribagh affiliated colleges • Session 2025–29 students • Students preparing for CUET-PG, IIT-JAM, CSIR-NET, GATE and TIFR examinations 📌 *SUBJECT:* Solid State Chemistry 📖 *LECTURE:* 3 (PART 2) 🧑‍🏫 *TEACHER:* Gautam Kumar 🎓 *CHANNEL:* Chemistry with Gautam 💡 *REVISION TIP:* While watching, draw a cube in your notebook and try to identify its symmetry axes, symmetry planes and centre of symmetry. Practising the diagram will help you understand the concept more clearly. 👍 Video helpful lage to LIKE karein. 📲 Apne classmates ke saath SHARE karein. 🔔 More Chemistry lectures and exam-oriented explanations ke liye CHANNEL SUBSCRIBE karein. 💬 *COMMENT BELOW:* Kya aap cubic crystal mein AOS, POS aur COS ko independently identify kar pa rahe hain? Apna doubt comment mein poochhein! #SolidState #LawOfSymmetry #AxisOfSymmetry #PlaneOfSymmetry #CentreOfSymmetry #ChemistryWithGautam #VBUHazaribagh #BScChemistry #IITJAM #CUETPG #CSIRNET #GATE