Physics - Sound Wave Question with Solution | TestHub

Each of the two strings of length $51.6\mathrm{cm}$ and $49.1\mathrm{cm}$ are tensioned separately by $20\mathrm{N}$ force. Mass per unit length of both the strings is same and equal to $1\mathrm{g}/\mathrm{m}$. When both the strings vibrate simultaneously the number of beats is :NEET 2009 (Mains)