# Homework Help: Kennedy-Thorndike Experiment

1. Sep 27, 2012

### unscientific

1. The problem statement, all variables and given/known data

In this problem i take the maximum relative velocity of ether wind to be (u + v) where they both complement each other..

3. The attempt at a solution

Not sure how they ended up with a '4uv' term..

2. Sep 28, 2012

### unscientific

Would appreciate any help..

3. Sep 28, 2012

### TSny

Good. What would the minimum relative velocity be during the day? δ is the change in Δt(c/λ) in going from maximum to minimum relative velocity.

Last edited: Sep 28, 2012
4. Sep 28, 2012

### unscientific

I got very close to the answer, just that my term had a '2uv' instead of a '4uv'..

5. Sep 28, 2012

### TSny

Did you calculate Δt for both the maximum and minimum velocity relative to the ether and then take the difference between these two Δt's? Also note the initial factor of 2 in the expression for Δt.

6. Sep 29, 2012

### unscientific

Yes, but there is a factor of (1/2) beside the square...

7. Sep 29, 2012

### unscientific

Ah, I see my mistake now..