16/08/2026
AKTU Applied Physics Unit 2 | Band Gap in Solids | Direct and indirect band gap | AAS101C/201C
Band Gap in Solids | Complete Concept + Energy Band Diagram | AKTU Applied Physics Unit 2 | AAS101
AKTU Applied Physics Unit 2 – Quantum Theory of Solids | Band Gap in Solids
In this lecture, Lalit Rathi Sir explains the complete concept of Band Gap (Energy Gap) in a simple and exam-oriented way for AKTU B.Tech Applied Physics students.
📌 Syllabus/Topic:
🔹 Unit 2 – Quantum Theory of Solids
🔹 Meaning of Band Gap
🔹 Energy Band Diagram
🔹 Valence Band & Conduction Band
🔹 Direct band gap
🔹 Indirect band gap
🔹 Direct band gap Semiconductor
🔹 Indirect band gap Semiconductor
🔹 Band Gap Energy (Eg)
🔹 Difference between Conductor, Semiconductor & Insulator
🔹 Important concepts for AKTU examination
🎯 Useful For:
✅ AKTU B.Tech 1st Year Students
✅ AAS101C / AAS201C
✅ AAS101D / AAS201D
✅ AAS101E / AAS201E
✅ Applied Physics / Engineering Physics
✅ AKTU Semester Exam Preparation
✅ Last-Minute Revision & Concept Building
📖 Why Watch This Lecture?
✔ Complete Concept Explanation
✔ Easy-to-Understand Approach
✔ Energy Band Diagrams
✔ Exam-Focused Explanation
✔ Important Points for AKTU Exams
👨🏫 Mentor: Lalit Rathi Sir
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