Two pipes are each open at one end and closed at the other. Pipe A has length $L$ and pipe $B$ has length $2L.$ Which harmonic of pipe $B$ matches in frequency the fundamental of pipe $A?$

The fundamental

The second

The third

The fourth

There are none

$$ Attempts: $1$ of $2$ used

Using multiple attempts will impact your score.

$15\%$ score reduction after attempt $1$