First slide

Characterstics of wave

Question

The graph between the frequency n and square root of density (p) of a wire [Fig.(10], keeping its length radius and tension constant is

Moderate

A
B
C
D

Solution

$n = \frac{1}{2 l} \sqrt{(\frac{T}{m})} = \frac{1}{2 l} \sqrt{(\frac{T}{{πr}^{2} ρ})} or n \propto 1 / \sqrt{ρ} So, the graph will be as shown in fig, (10 d) .$

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