Wave phase is important because it affects how waves mix together.

Here’s a simple breakdown:

1. Constructive Interference: This happens when waves line up perfectly.

   That means they have a phase difference of $0$ or $2\pi$.

2. Destructive Interference: This occurs when waves don’t line up.

   In this case, the phase difference is $\pi$ or other odd multiples.

The tricky part is measuring the exact phase of the waves.

If there are small errors in measurement, it can lead to unexpected patterns.

Solution: To get better results, we can use special tools like oscilloscopes.

These help us measure wave phases more accurately and understand how the waves interfere with each other.