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Two source interference

by aliaze1
Tags: interference, source
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Sep15-07, 12:27 PM
P: 177
1. The problem statement, all variables and given/known data

What are the path-length differences at Points A, C, and D
(respectively, ΔdA, ΔdC, ΔdD)?

Enter your answers numerically in terms of lambda λ

2. Relevant equations

Does this require an equation? I figured it was pictorial

3. The attempt at a solution

I looked at the picture and tried the following, which were all incorrect:

3.5, 2.5, 2
3, 2, 1.5
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Sep15-07, 12:33 PM
P: 177
nevermind, i got it, i used this:

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