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Subjects
Science CBSE
Class 9
Sound
Textbook based HOTS II
20.
Multiple choice question XX
Exercise condition:
2
m.
A longitudinal wave travels through a coiled spring at a speed of \(4\ ms^{−1}\). The distance between two consecutive compression is \(20\ cm\). Find the frequency of the wave?
\(15\ Hz\)
\(20\ Hz\)
\(25\ Hz\)
\(30\ Hz\)
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