Two identical strings and

PHYSICS · Subjective · CBSE · Physics · Waves · Waves

Problem

Two identical strings

A

and

B

, each

0.50\,\text{m}

long, are fixed at both ends. (a) String

A

has linear mass density

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

and is under a tension of

100\,\text{N}

. Calculate its fundamental frequency. (b) String

B

has linear mass density

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

. Its third harmonic has the same frequency as the fundamental of string

A

. Find the tension required in string

B