Interference Patten in standing waves

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Discussion Overview

The discussion revolves around the observation and capture of interference patterns in standing waves, specifically focusing on how to photograph these patterns and the nature of the light interference involved. The scope includes practical photography techniques and the physics of wave interference.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant seeks assistance on how to capture images of interference patterns associated with standing waves.
  • Another participant suggests that the observed patterns may result from a string driven by a motor, indicating a specific setup for creating standing waves.
  • A different participant proposes a method for photographing the patterns, recommending a low to moderate shutter speed for the camera.
  • Another reply questions the nature of the observed patterns, suggesting they may be due to the strobing effect of an LED flash rather than true interference patterns, and advises using a different light source for better results.

Areas of Agreement / Disagreement

Participants express differing views on the nature of the observed patterns and the best methods for capturing them. There is no consensus on whether the patterns are genuine interference patterns or artifacts of the lighting setup.

Contextual Notes

Participants mention specific conditions for photography, such as shutter speed and light source, but do not resolve the implications of these conditions on the accuracy of the observed patterns.

Who May Find This Useful

Individuals interested in wave physics, photography techniques related to capturing wave phenomena, and those exploring the practical aspects of interference patterns may find this discussion relevant.

jihoonkim
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Please Help! Whenever i read standing waves, the interference patten can be seen as attached pictures. I want to know how this pictures can be taken?
How lights can be interfered?
 

Attachments

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Those look to me to be simply a string that is driven by a motor at one end and attached to a fix point at the other.
 
To answer your first question about how to take the pictures of an interference pattern, take your camera and if it's set from a low to moderate shutter speed it'll work.
 
This appears to me to be the result of the strobing of the led flash on rope/string and not interference patterns. Try using external light source w/minimal flicker, e.g. a halogen spot, and leave the shutter open longer. That should allow the light to smear all under the curve of the wave (assuming you are demonstrating the using the aforementioned setup as it appears.) Good luck!
 

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