CBSE Class 9
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Science
Motion, Force & Work
Lesson 3 of 10 • 22 upvotes • 10:19mins
This lesson tells about the speed of light in various medium. It also explains the longitudinal and transverse waves.
10 lessons • 1h 47m
Overview of the Course
2:21mins
Understanding Sound with Bell Jar Experiment
11:10mins
Longitudinal and Transverse Waves
10:19mins
Sound Waves and its Characteristics
12:54mins
Reflection of Sound
14:11mins
Echo
12:35mins
Reverberation
10:37mins
Ultrasound
12:21mins
SONAR
10:40mins
The Human Ear
10:07mins