Frequency of sonometer wire, \(n \propto \frac{1}{l}\)
\(\therefore \frac{n+5}{n-5}=\frac{100}{95} \Rightarrow 95(n+5)=100(n-5)\)
or, \(95 n+475=100 n-500\)
or, \(5 n=975\)
or, \(n=\frac{975}{5}=195 \mathrm{Hz}\)

(વાયુનો અચળાંક $R=8.3 \;JK ^{-1} mol ^{- 1}$ લો)