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Science CBSE Homework Assignments
Class 9
Sound
Types of wave II
1.
Frequency of the wave
Question:
2
m.
A sound wave during propagation produces \(40\) compressions and \(40\) rarefactions in \(0.4\ seconda\). Find the frequency of the wave.
\(40\ Hz\)
\(50\ Hz\)
\(100\ Hz\)
\(80\ Hz\)
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