\(\Rightarrow \frac{n+1}{n}=\frac{420}{315} \Rightarrow n=3\)
Hence \(3 \times \frac{v}{2 \ell}=315 \Rightarrow \frac{v}{2 \ell}=105 \mathrm{Hz}\)
Lowest resonant frequency is when \(n=1\)
Therefore lowest resonant frequency \(=105 \mathrm{Hz}\)
$y_1=5 \sin 2 \pi(75 t-0.25 x)$
$y_2=10 \sin 2 \pi(150 t-0.50 x)$
છે. આ બે તરંગોની તીવ્રતાનો ગુણોત્તર $\frac{I_1}{I_2}$ કેટલો છે.