Science, asked by nikitamugali1112004, 10 months ago

all formula for chapter sound for class 9th

Answers

Answered by nayakdipanshu

0

Answer:

Book kholiye usme diya h

Answered by siddharth156894

0

Answer:

2d/tin case of echo, reverberation, sonar

v=1/t

Explanation:

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