Physics - Wave on String Question with Solution | TestHub

The velocity of a wave is given by $v=n\lambda$

Substituting the given value of velocity $v=12m/s$:

$12=n\lambda$

$\lambda =\frac{12}{n}$

When two identical waves travelling in opposite directions interfere, a stationary wave is formed.

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

Distance $=\frac{1}{2}\times \frac{12}{n}=\frac{6}{n}$

Answer: $\frac{6}{n}$