Respuesta :

metchelle
From my research, the question has the following choices:

a.the lowest frequency at which a standing wave is possible
b. the highest frequency at which s standing wave is possiblec. the only frequency at which a standing wave is possible
d. the only frequency at which standing wave is not possible

From there, the correct answer is A.

Answer:

This is the minimum possible frequency generated by the given medium

Explanation:

Let say the medium through which sound is produced is a hollow pipe closed at one end

Now at minimum possible situation the wave that will form in it will be of quarter length so we can say

[tex]L = \frac{\lambda}{4}[/tex]

so we have

[tex]\lambda = 4L[/tex]

now we will have

[tex]f = \frac{v}{\lambda}[/tex]

so fundamental frequency of closed pipe will be

[tex]f = \frac{v}{4L}[/tex]

similarly if pipe is closed then in that case the wavelength will be half inside the pipe

[tex]L = \frac{\lambda}{2}[/tex]

now we have

[tex]f = \frac{v}{2L}[/tex]

in this way we can say it is the minimum frequency of sound produced by the source

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