Understanding Phase Difference in 3D Waves

In summary, the conversation discusses a wave expanding outwards from the origin with specific points and a given wave speed and frequency. The question posed is about the phase difference between these two points, with equations attempted to solve it. The final solution suggests using the distance from the origin to calculate the phase difference.
  • #1
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Homework Statement



A wave at the origin expands outwards passing the points (.01, .03, .02) and (-.01, .015, .025). This wave has a wave speed, V_w = 346 m/s and frequency = 13100 HZ.

What is the phase difference between these two points?


Homework Equations




v = (wavelength)(frequency)

Phase Difference = 2pi (delta x) / Wave length


The Attempt at a Solution



I attempted to use the following:


[(distance between points using 3D formula)/(wave length)] * 2pi = phase difference.


This was in correct. I am going to guess that it's because "Phase Difference = 2pi (delta x) / Wave length" is for a wave in one dimension. My question is how does the phase difference change in 3 dimensions? I attempted to use the surface area of a sphere but it also failed. Something is quite wrong.
 
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  • #2
Use the distance from the origin... the delta you need is the difference of the second point from the origin - the distance of the first point from the origin.
 
  • #3
Wonderful thanks.
 

Related to Understanding Phase Difference in 3D Waves

What is phase difference in 3D technology?

Phase difference in 3D technology refers to the difference in timing between the left and right images that are presented to each eye in order to create a sense of depth perception.

How is phase difference used in 3D movies?

In 3D movies, phase difference is used to create the illusion of depth by presenting two slightly different images to each eye. This creates a sense of depth perception and makes the images appear to pop out of the screen.

What factors affect phase difference in 3D technology?

The main factors that affect phase difference in 3D technology are the distance between the viewer and the screen, the size and resolution of the screen, and the technology used to create the 3D effect (e.g. polarized glasses, active shutter glasses, etc.).

Why is phase difference important in 3D technology?

Phase difference is important in 3D technology because it is what creates the illusion of depth perception. Without phase difference, the images would appear flat and the 3D effect would not be possible.

How is phase difference measured in 3D technology?

Phase difference in 3D technology is typically measured in degrees or fractions of a degree. It can also be measured in terms of the time difference between the left and right images, usually in milliseconds.

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