Скачать или смотреть Sound Full Chapter Class 8 Science | NCERT Science Class 8 Chapter 13

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✅ In this video,

✔️ Class: 8th
✔️ Subject: Science
✔️ Chapter: Sound
✔️ Topic Name: Sound Full Chapter Class 8 Science | NCERT Science Class 8 Chapter 13
✔️ Topics Covered in This Video: Full Chapter Explanation & Exercise from Class 8 Science Chapter 13 Sound
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0:00 Introduction to Sound
1:19 How to produce sound - Producing process of sound
7:24 Sound produced by humans - How to produce sound in Human Body
9:50 Activity - understanding for the working of vocal cords
10:48 Sound needs a medium for propagation
16:09 How hear sound through our ears
20:29 Properties of sound amplitude, time period, frequency
23:44 Properties of sound loudness and pitch
27:39 Which are audible and inaudible sounds
30:19 Noise pollutions
31:53 Measures to limit noise pollution
33:51 Solutions MCQ's
35:25 Solutions true and false
37:06 Solutions fill in the blanks
38:17 Solutions question answer
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