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Question

Calculate the wavelength of a sound wave whose frequency is 220Hz and speed is 440m/s in a given medium


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Solution

Step 1: Given data

Frequency (η)=220Hz

Speed = 440m/s

Step 2: Formula used

For a sound wave,

v=λ×η

v=Velocity

λ=Wavelength

η=Frequency

Step 3: Determine the wavelength

Given a sound wave whose frequency is 220Hz and speed is 440m/s, then its wavelength will be:

As velocity is given by,

v=λ×η

Then,

λ=vη
Or,

λ=440m/s220Hz=2m

Thus, the wavelength of the given sound wave is 2m whose frequency is 220Hz and the speed is 440m/s in a given medium.


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