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NCERT Class 9 Physics Notes : SOUND
By MSIPATNA 2 Dec 2019
1. Production of Sound Sound i...ce of all sound...music All sound is a...urbance. Sound propagate...as follows:- £9; for one...speed of sound is more i...9.Structure &nb...smits the sound waves to...amber? 9. Can two astr...ided in co909411">ncert halls?...inal waves: Those in...speed of sound in liquid...
Tags: 9 370891">NCERT 9 370892">Class 9 Physics Notes : SOUND

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