Physics

Problem

Two strings A and B are stretched by the same tension of

50\,\text{N}

. String A has length

0.60\,\text{m}

and linear density

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

, while string B has length

0.90\,\text{m}

and linear density

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

. What is the ratio of the second harmonic frequency of string A to the third harmonic frequency of string B,

\displaystyle \frac{f_{2A}}{f_{3B}}

? a) 1.00 b) 0.50 c) 0.71 d) 1.41