CBSE Class 9 - Sound
3 videos • 121 views • by Ekta Soni
1
Sound -L1 || Amplitude, Wavelength, Velocity, Time Period || Easy Explanation || CBSE Class 9
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2
Sound -L2 || Structure of Human ear || Easy Explanation || CBSE Class 9
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3
Why Do we fall ill-L1 || CBSE Class 9|| Easy NCERT Explanation || Ekta Soni
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