In a sonometer experiment, two wires are fixed whose tensions are in the ratio of 4 : 1, lengths in the ratio of 29 : 26 and diameter are in ratio of 2 : 1 and densities are in ratio of 4 : 5. What will be the frequency of beats produced if the frequency of note of higher pitch is 400 `s^(-1)` ?

Explanation

To solve the problem step by step, we will use the relationships between frequency, tension, length, diameter, and density of the wires in the sonometer experiment.

### Step 1: Understand the relationship of frequency
The frequency of a wire can be expressed as:
\[ f = \frac{1}{2L} \sqrt{\frac{T}{\rho}} \]
where:
...