A sonometer wire long has tension and linear mass density

PHYSICS · Single correct · CBSE · Physics · Waves · Waves

Problem

A sonometer wire

1.0\,\text{m}

long has tension

100\,\text{N}

and linear mass density

1.0\times10^{-3}\,\text{kg\,m}^{-1}

. What will be its fundamental frequency after the tension is increased to

400\,\text{N}

(length and linear density unchanged)? (a)

158\,\text{Hz}

(b)

79\,\text{Hz}

(c)

316\,\text{Hz}

(d)

632\,\text{Hz}