The figure shows the circular wave fronts emitted by two sources, the wavelength for both idential waves is 1.4 m. What is the path-length difference at point Q, in meters?

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The figure shows the circular wave fronts emitted by two sources, the wavelength for both idential waves is 1.4 m. What is the path-length difference at point Q, in meters?

Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

R
2.
Transcribed Image Text:R 2.
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The figure shows the circular wave fronts emitted by two sources.

Give the distances from points P, Q and R to the point 1 in indicated order as multiples of λ. 

Give the distances from points P, Q and R to the point 2 in indicated order as multiples of λ. 

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