# Wave Problem

1. May 8, 2010

I am stuck on a question about standing waves:

'The diagram below show's Melde's experiment and demonstartion of a stationary wave on a string'

The string has 3 full wavelengths shown, and 3 points are marked:

Point A is on an antinode, Point B is on the same antinode, but very fractionally to the right, and point C is on an antinode out of phase (see the attachment for a similar diagram) - A is in red, B is in black, C is in blue

The first question is easy:
"State whether the following paris of points on the string are in phase, in antiphase, or neither in phase nor antiphase

A and B - I put that they are both in phase
A and C - I put that they are in antiphase

The next question (the tough nut):
"Describe briefly how you could check this experimentally"

I have no idea!

Any form of help/guidance will be much appreciated

2. Relevant equations

3. The attempt at a solution
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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