Physics - Wave on String Question with Solution | TestHub

Velocity of the waves, $v=18$ m/s.

Frequency of the waves, $f=n$.

Wavelength of the waves, $\lambda =\frac{v}{f}=\frac{18}{n}$.

When two identical waves travelling in opposite directions interfere, they form a stationary wave.

The distance between two consecutive antinodes in a stationary wave is $\frac{\lambda }{2}$.

Distance = $\frac{1}{2}\times \frac{18}{n}=\frac{9}{n}$.