What errors did Rutherford encounter in his experiment

In summary, Rutherford's experiment encountered both random and systematic errors, as with any experiment. Random errors could have arisen from observation or reading errors, while systematic errors could have occurred from instrument errors or poor experimental design. However, the results of the experiment were consistent and accurate, and Rutherford emphasized the importance of conducting a well-designed experiment to minimize errors.
  • #1
zakthrowaiz

Homework Statement


What errors did Rutherford encounter in his experiment and how did he account for them.

Homework Equations


I believe there is an equation to find (b) but I don't know what it is.
 
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  • #2
zakthrowaiz said:

Homework Statement


What errors did Rutherford encounter in his experiment and how did he account for them.

Homework Equations


I believe there is an equation to find (b) but I don't know what it is.

Do you mean errors according to what was believed back then? Have you read about the experiment?
 
  • #3
I have read about the experiment and I know its results; majority of the particles passed through, some deflected back, 1/12000 deflected back <90 degrees etc. I was told to speak about errors that occurred that could effect the result.
 
  • #4
zakthrowaiz said:
I was told to speak about errors that occurred that could effect the result.

Talking in general, experimental errors fall into two types: random errors and systematic errors.
Random errors may arise due to several causes e.g. observation or reading errors (for instance the flickering needle on an analog meter) or environmental causes like some fluctuation in the temperature of a room.
Systematic errors may also arise due to several causes, like an instrument error (e.g. poor calibration), reading error or if the whole experiment has a poor design, just to name a few.

Now, for the specific Rutherford's experiment, it has been done a lot of times as a part of an undergraduate lab and as far as I know, the results has been consistent and accurate enough with the original one. Rutherford himself has a famous quotation about accuracy "If your experiment needs statistics, you ought to have done a better experiment". Of course in every and each experiment errors occur and in order to identify them you have to search for factors in the above mentioned two categories.
 

1. What was Rutherford's experiment and why is it important?

Rutherford's experiment, also known as the gold foil experiment, involved shooting alpha particles at a thin sheet of gold foil. This experiment helped to disprove the plum pudding model of the atom and led to the discovery of the nucleus, which is considered a major breakthrough in our understanding of atomic structure.

2. What were the main errors that Rutherford encountered in his experiment?

The main errors that Rutherford encountered in his experiment were unexpected results from the alpha particles. Instead of passing straight through the gold foil as predicted, some alpha particles were deflected at large angles, while a few even bounced back. This was unexpected and led Rutherford to question the prevailing model of the atom.

3. How did Rutherford explain the unexpected results in his experiment?

Rutherford explained the unexpected results by proposing that the atom consisted of a small, dense, and positively charged nucleus surrounded by a cloud of negatively charged electrons. He also suggested that the majority of the atom's mass was concentrated in the nucleus, with the electrons occupying a relatively large amount of empty space around it.

4. Were there any limitations or sources of error in Rutherford's experiment?

One limitation of Rutherford's experiment was that it only provided information about the structure of the atom's nucleus and did not explain the behavior of the electrons. Additionally, the gold foil used in the experiment was not uniformly thin, which could have led to some discrepancies in the results. Finally, the experiment was conducted in a vacuum, which may have affected the behavior of the alpha particles.

5. What impact did Rutherford's experiment have on our understanding of the atom?

Rutherford's experiment had a significant impact on our understanding of the atom by providing evidence for the existence of the nucleus and disproving the plum pudding model. It also led to further research and discoveries, such as the development of the modern atomic model and the discovery of the proton. Rutherford's experiment is considered a pivotal moment in the history of atomic theory.

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