The sources of error in a diffraction grating experiment

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Discussion Overview

The discussion focuses on identifying sources of error in a diffraction grating experiment and exploring how these errors may affect the measurement of the unknown quantity, which is the wavelength. The scope includes theoretical considerations and potential practical implications of these errors.

Discussion Character

  • Exploratory
  • Debate/contested
  • Homework-related

Main Points Raised

  • Some participants suggest that reading the diffraction angle could be a significant source of error, as slight differences in readings may occur.
  • There is a request for participants to share their thoughts on the top sources of error and their effects on output data.
  • One participant expresses familiarity with diffraction patterns and the theory behind them, indicating a willingness to engage in a deeper discussion.
  • Several participants emphasize the importance of cataloging errors to facilitate a more informed discussion.

Areas of Agreement / Disagreement

The discussion remains unresolved, with multiple participants expressing a desire for more input on potential sources of error and their effects. There is no consensus on specific errors yet.

Contextual Notes

Some assumptions about the participants' familiarity with the mathematical analysis of diffraction grating patterns are present, but these are not fully explored. The discussion also hints at varying levels of engagement and effort among participants.

Who May Find This Useful

This discussion may be of interest to individuals studying experimental physics, particularly those focused on optics and diffraction phenomena.

Adams2020
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In a diffraction grating experiment, what can be the sources of error and also what effect do these sources have on the unknown quantity (wavelength) in the experiment?
 
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Adams2020 said:
Summary:: What are the sources of error in the diffraction grating experiment and what is the effect?

In a diffraction grating experiment, what can be the sources of error and also what effect do these sources have on the unknown quantity (wavelength) in the experiment?
What are your thoughts? There are a couple obvious sources of error, but you need to go first. Are you familiar with the mathematical analysis of diffraction grating patterns?

Also, is this a schoolwork question?
 
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berkeman said:
What are your thoughts? There are a couple obvious sources of error, but you need to go first. Are you familiar with the mathematical analysis of diffraction grating patterns?

Also, is this a schoolwork question?
Yes, I am familiar with diffraction patterns and its theory.
No, this is not a school work question, it is a personal question, otherwise I would have sent the question in the relevant section.
 
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Great. So what do you think the top couple sources of error would be, and how would that affect the output data?
 
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berkeman said:
Great. So what do you think the top couple sources of error would be, and how would that affect the output data?
I think an error could be to read the diffraction angle. Because people may read different angles, albeit with slight differences. And because the diffraction angle is related to the wavelength, can affect it.
 
Doesn't anyone exist?:smile:
 
I, for one, am waiting for your best effort to catalog all the errors. This avoids us telling you things you already know and allows us to understand at what depth to proceed.
 
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Adams2020 said:
Doesn't anyone exist?

Sounds a lot like "Hop to it! It's due Friday!"

Add me to the list of people waiting for your best effort. If it helps, many people are willing to put as much effort as you are. But not much more.
 
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