MCQ
Stationary waves are set up in air column. Velocity of sound in air is $330 m/s$ and frequency is $165\,Hz$. Then distance between the nodes is ... $m$
- A$2$
- ✓$1 $
- C$0.5$
- D$4$
Distance between two successive nodes
= $\frac{\lambda }{2}$ $ = \frac{v}{{2n}} = \frac{{330}}{{2 \times 165}} = 1m$
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(The coefficient of viscosity of water is $9.8 \times 10^{-6}$ $\left.\mathrm{N} \mathrm{s} / \mathrm{m}^2\right)$

$(A)$ $E_1 \omega_1=E_2 \omega_2$ $(B)$ $\frac{\omega_2}{\omega_1}=n^2$ $(C)$ $\omega_1 \omega_2= n ^2$ $(D)$ $\frac{E_1}{\omega_1}=\frac{E_2}{\omega_2}$
