Distance between two points of differing phase

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To calculate the minimum distance between two points on a wave differing in phase by 60 degrees, one must understand the relationship between phase and wavelength. A wave with a wavelength of 20 cm means that a 60-degree phase difference corresponds to a specific distance along the wave. The discussion reveals confusion about the calculation, with one participant guessing the distance to be 3.33 cm, which may not be accurate. There is a suggestion to review definitions and diagrams related to phase for better understanding. Overall, grasping the concept of phase is essential for solving such problems accurately.
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1. A wave has a wavelength of 20 cm. Calculate the minimum distance between 2 points on the wave which differ in phase by 60 degrees



2. ummmm



3. I have drawn a sine wave from 0 to 360, and have marked the point where 60 degress should be. I don't really know why though. Very stuck, even though it seems like an easy short question. Missing something here for sure.
 
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Is it 3.33?

I need to learn the simple definition of what phase is I think.

EDIT: Doesn't matter, I've had to hand it in now. Just guessed at 3.33. Which is probably wrong, but it was only two marks so its not the end of the world.
 
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Hopefully you showed your reasoning in determining your answer. A guess
often earns: 0 credit, or if your teacher is generous: 1/4 credit.

To gain a better feel for phase you may want to review your book's definition and look particularly at any associated diagrams. A search of the internet on phase as it relates to wave phenomena will also give you insight. Here's one http://en.wikipedia.org/wiki/Phase_(waves)" .
 
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