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Some examples and questions
Lesson 7 of 8 • 5 upvotes • 12:46mins
Ashish Gehlot
Chapter 12: Sound for Class 9
8 lessons • 1h 23m
1
Introduction of the Chapter (in Hindi)
6:47mins
2
Production and Propagation of Sound (in Hindi)
11:13mins
3
Characteristics of Sound (in Hindi)
12:06mins
4
Reflection of Sound (in Hindi)
11:04mins
5
Speed of Sound in Different Mediums and Hearing Range (in Hindi)
8:59mins
6
Applications of ultrasound and structure of human ear
12:41mins
7
Some examples and questions
12:46mins
8
Summary of the chapter
7:56mins
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