Length of a sonometer wire is 0.75, m and density 9 × 10^3, kg/m^3 . It can bear a stress of 8.1 ×

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14.Waves and Sound

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The length of a sonometer wire is $0.75\, m$ and density $9 \times 10^3\, kg/m^3$. It can bear a stress of $8.1 \times 10^8\, N/m^2$ without exceeding the elastic limit. What is the fundamental frequency that can be produced in the wire .... $Hz$ ?

A

$100$

B

$200$

C

$150$

D

$175$

Solution

$\mathrm{n}=\frac{1}{2 \ell} \sqrt{\frac{\mathrm{T}}{\mu}}=\frac{1}{2 \ell} \sqrt{\frac{\mathrm{Stress}}{\rho}}$

Standard 11

Physics

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