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Answered

A wave with a 5 m wavelength travels down string at a speed of 8 m/s. What is the frequency of the wave?

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Answer:

Given,

Velocity V=340m/s

Wavelength λ=2cm=0.02m

Frequency f=?

We have,

V=F.λ

⇒340=F×0.02

F=

0.02

340

=17,000Hz

As the audible range is in between 20Hz and 20,000Hz this sound wave is at audible range.

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