Question

A standing wave is produced by reflecting a wave off a wall (which acts like a fixed end). If the standing wave consists of 6 anti-nodes and 7 nodes and the wall is 12m away from the source determine the wavelength.

Answer 1

4 m

Step-by-step explanation:

We can represent the standing wave as follows

So, we can divide the total distance into 6 parts as follows

12 m/6 = 2 m

Then, 2 m is the distance from node to node. It means that the wavelength will be twice this distance, so

wavelength = 2 x 2m = 4m

Therefore, the wavelength is 4m