Sound - NCERT Solutions (Part 2) | Class 9 Physics скачать в хорошем качестве

Sound - NCERT Solutions (Part 2) | Class 9 Physics

👉Previous Video:    • Sound - NCERT Solutions (Part 1) | Class 9...   👉Next Video:    • Sound - NCERT Solutions (Part 3) | Class 9...   ✔️📚👉 Watch Full Free Course: https://www.magnetbrains.com ✔️📚👉 Get Any Class & Subject's Topic Video Here:- https://www.magnetbrains.com/get-topi... ✔️📚👉 Get All Subjects Playlists: ​https://www.pabbly.com/out/all-videos... ✔️📚👉 Grab Notes by Expert Teachers Here: https://www.pabbly.com/out/magnet-brains ✔️📚👉 Place Your Queries For Books Here: https://www.magnetbrains.com/booklet ✔️📚👉 Get Books Prepared by Our Expert Teachers at Your Door Step: https://www.magnetbrains.com/book_pur... =============================================== 📢 Full Playlist Link:   • Class 9 Physics (New Session 2023-24) | Co...   ✅ In this video, ✔️ Class: 9 ✔️ Subject: Physics ✔️ Chapter: Sound ✔️ Topic Name: Sound - NCERT Solutions (Part 2) | Class 9 Physics =============================================== 00:00 Introduction 01:09 - 10:36 Question no.3 10:37 - 18:26 Question no. 4 18:27 - 18:32 Question no. 5 18:33 - 21:16 Question no. 6 21:17 - 26:27 Question no. 7 26:28 Website Overview =============================================== 📢 🔥 Available (Kindergarten to 12th) all Video Subject wise Playlist https://www.pabbly.com/out/all-videos... Why study from Magnet Brains? Magnet Brains is an online education platform that helps give You NCERT/CBSE curriculum based free full courses from Kindergarten to Class 12th so that you can perform well in any and all exams you give in your academic career. 👉 Contact us 🤑🤑 ➡️ Connect with us : [email protected] ➡️ Website : https://www.magnetbrains.com ➡️ Subscribe to us on YouTube:    / @magnetbrainseducation   ➡️ Subscribe to Magnet Brains Hindi Medium :    / @magnetbrainshindimedium   ➡️ Facebook :   / magnet-brains-education-110955641184512   ➡️ Instagram :   / magnetbrains   ➡️ Telegram : https://t.me/magnetbrainsbhopal Points covered in this video:- Question. 3. Cite an experiment to show that sound needs a material medium for its propagation. Solution. Take an electric bell and air tight glass bell jar connected to vacuum pump. Suspend the bell inside the jar, and press the switch of the bell. You will be able to hear the bell ring. now pump out the air from the glass jar. The sound of the bell will become fainter and after some time, the sound will not be heard. This is so because almost all air has been pumped out. This show that sound needs a material medium to travel. Question. 4. Why is sound wave called a longitudinal wave? Solution. The sound wave is called a longitudinal wave because in a sound wave the particles of the medium vibrate back and forth in the ‘same direction’ in which the wave is moving. Question. 5. Which characteristic of the sound helps you to identify your friend by his voice while sitting with others in a dark room? Solution. Quality (or Timbre) of sound. #class9science #physics #magnetbrains sound ncert class 9 pdf sound ncert class 9 pdf notes sound ncert solutions class 8 ncert solutions for class 9 science sound class 9 class 9 sound notes sound ncert class 9 pdf download in hindi class 9 science chapter sound question answer study rankers . Disclaimer: "This video is for educational and informational purposes only and is not intended to infringe on any copyrights. If you believe that this video has used any copyrighted material in a way that constitutes copyright infringement, please contact us at [email protected] and we will take appropriate action."