Sound | Full Chapter | Class 9 Science | Chapter 11

📕 Sprint Batch for Class 9: https://physicswallah.onelink.me/ZAZB... 📲 PW App/Website: https://physicswallah.onelink.me/ZAZB... 📚 PW Store: https://physicswallah.onelink.me/ZAZB... 🌐 Neev Class 9th Telegram:https://t.me/pwneevclass9 ------------------------------------------------------- Explore the full chapter on Sound from Class 9 Science (Chapter 11) in this detailed video. Understand key concepts like sound production, propagation, reflection, echo, and the human ear with easy explanations. Perfect for CBSE students preparing for exams. Watch now and revise effectively! ------------------------------------------------------- Timestamps: 00:00 - Introduction 02:27 - Topics to be covered 02:36 - What is wave motion? 07:11 - Example of vibrational motion 09:43 - Concept of wave motion 17:02 - Types of waves 38:06 - Sound waves-Production 45:37 - Sound waves-Propagation 55:43 - Sound requires medium to travel 57:48 - General characteristics of waves 1:10:12 - Speed of sound wave 1:16:32 - Characteristics of sound waves 1:23:10 - Laws of reflection of sound wave 1:27:55 - Echo 1:30:07 - Reverberation and how to reduce it 1:36:24 - Reflection of sound based instruments 1:40:25 - Audible range 1:45:38 - Ultrasound and its applications 2:02:49 - Thank You Bacchon ------------------------------------------------------- ☎️ For any Queries or Complaints visit: https://bit.ly/PW_Queries OR give a Missed Call on 07019-243-492 ------------------------------------------------------- #Sound #Class9 #NEEV #PhysicsWallah #PW #OneShot #chapter11 #Science #Soundfullchapter