Physics - Wave on String Question with Solution | TestHub

For a string fixed at both ends, nodes are always formed at the two fixed ends.

If there are $n$ nodes in total on the string, the number of segments (or loops) formed between these consecutive nodes is $n-1$.

The distance between two consecutive nodes is $\frac{\lambda }{2}$.

The total length of the string $L$ is the product of the number of segments and the length of each segment.

$L=(n-1)\frac{\lambda }{2}$

Answer: $(n-1)\frac{\lambda }{2}$