Find the frequency of a 63.8-cm long open end air column that resonates as shown in the diagram at the right. The speed of sound in the air is 345 m/s.

f = 270.37 Hz

Explanation:

Given that,

The length of the long open end air column, L = 63.8 cm

The speed of sound in the air is 345 m/s

We need to find the frequency of the air column. For an open pipe, the frequency is given by :

So, the frequency of the air column is equal to 270.37 Hz.

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