Foundation Class 9th Sprint Batch 👉 https://bit.ly/3VS4OrG 📲PW App Link - https://bit.ly/YTAI_foundation 🌐PW Website - https://www.pw.live/ 👉Complete Playlist of Work, Energy and Power 👉   • Science || Chapter 11 : Work and Ener...   👉 Complete Playlist Zero To Hero Class 9 👉    • Science || Chapter 10 : Gravitation |...   ---------------------------------------------------------------------------------------------------------------------- 📌 PHYSICS WALLAH OTHER CHANNELS : 🌐 PhysicsWallah -Alakh Pandey: null 🌐 JEE Wallah: null 🌐 Competition Wallah: null 🌐 PW Foundation: null 🌐 NCERT Wallah : https://www.youtube.com/channel/UC8zCnnfhz-dvIpVdZ1CheuA 🌐 Defence Wallah-NDA: https://www.youtube.com/channel/UC8OCoGX9tmMneOzIFUTWq2Q 🌐 PhysicsWallah English: null 🌐 PW Vidyapeeth: null 🌐 Commerce Wallah by PW: null 🌐 CA Wallah bt PW: https://www.youtube.com/channel/UC2amkJX5zDyQJ0mDajAWRSA 🌐 PW Sarkari Exam: null 🌐 PW - Hindi Medium: null 🌐 PW Bangla: null 🌐 PW Maharashtra: null 🌐 PW Telugu: null 🌐 PW Kannada: null 🌐 PW Gujarati: null 🌐 PW Facts: null 🌐 PW Insiders: https://www.youtube.com/channel/UCHMWQFr9Nwo3wJsAap2Wnfw 🌐 PW Little Champs: null 🌐 PW Pathshala: https://www.youtube.com/channel/UCcXUY9NSMyYbkOvUD97CUmA 🌐 Banking Wallah: https://www.youtube.com/channel/UCg5_K50hLTKerLkSE7I1yWQ 🌐 SSC Wallah: https://www.youtube.com/channel/UCcaEVV7A47J4k9GFcqOOYkg 🌐 JEE Challengers by PW : https://www.youtube.com/channel/UCyf71tWV2abeN-l_UKiJ-5g 🌐 UPSC Wallah: https://www.youtube.com/channel/UCqOy6oOu6RPJNHYQ8f_Ybvg 🌐 UPSC Wallah हिन्दी : https://www.youtube.com/channel/UCmrP-DYdZuThp8AO9lnnwNw 🌐 GATE Wallah: https://www.youtube.com/channel/UC9PoSJoftLvEnXT-PtQ5Wtw 🌐 GATE Wallah - EC, EE & CS: https://www.youtube.com/channel/UCuGWIkiNaWjsCqybgxGuxfg 🌐 GATE Wallah - ME, CE & XE: https://www.youtube.com/channel/UCGrrw9x3_B_fItUIBMvqAUw 🌐 GATE English: https://www.youtube.com/channel/UCOsV75fSUr8gnMbhx-Qh3Lg 🌐 College Wallah: https://www.youtube.com/channel/UCDrf0V4fcBr5FlCtKwvpfwA 🌐 PW IIT JAM & CSIR NET : https://www.youtube.com/channel/UCuj28Zll58sztDqLiDhzgtQ 🌐 MBA Wallah : https://www.youtube.com/channel/UCWWEvCschv0T0rtou4VaKGw 🌐 Teaching Wallah: https://www.youtube.com/channel/UCUzqJZOkCejFoc5eqWWA9Eg 🌐 MBA Wallah : https://www.youtube.com/channel/UCWWEvCschv0T0rtou4VaKGw 📌 PHYSICS WALLAH SOCIAL MEDIA PROFILES : 🌐 Telegram:https://t.me/foundationwallah 🌐 Facebook: https://www.facebook.com/physicswallah 🌐 Instagram: https://www.instagram.com/foundationwallah_/?hl=en 🌐 Twitter: https://twitter.com/physics__wallah 🌐 Linkedin: https://www.linkedin.com/company/78087354/admin/ Time Stamp :- Introduction 00:00-1:00 Based on direction of vibrating particles 1:01 - 6:12 Based on medium of propagation 6:13 - 9:27 Sound wave production 9:28 - 14:44 Sound wave propagation 14:45 - 18:24 Sound require medium to travel 18:25 - 20:22 General characteristics of wave 20:23 - 30:21 Speed of sound wave : formula and variation 30:22 - 32:41 Characteristics of sound waves 32:42 - 39:06 Laws of reflection of sound  wave 39:07 - 43:30 Echo 43:31-48:01 Reverberation and how to reduce it 48:02 - 50:40 Reflection of sound based instrument 50:41 - 54:49 Audible range 54:50 - 58:09 Ultrasound and its applications 58:10 - 59:29 Applications 59:30 - 1:04:59 📌 For any queries or complaints Visit: https://bit.ly/PW_Queries #Sound #Science #PhysicsWallahFoundation #Class9th #PhysicsWallah #Class9thScience #Class9thPhysics #ZerotoHero #Class9 #NCERT #CBSE #OneShot #SoundClass9 #Science