Physics lab



I have an report for physics lab and I want to rephrase it totally

I attached the document bellow

Thank you

For Lab 10 we were able to see that an image placed on one side of a lens was able to produce a
focused image on the other side of the lens.
After doing the experiment we could see that when we sat the light source close to the lens, a
distance of 15.0 cm, while making the lens far away from the screen, a distance of 36.0 cm, we
got a bigger image height than from the other trials. As expected when the lens and light source
was 40 cm away from each other while bringing the screen only 14.7 cm away from the lens we
got our smaller image. Overall we were able to see a trend in our results; when we pushed the
lens and light source farther away while pushing the lens and the screen closer together we were
able to consistently get a smaller image.
Secondly, we analyzed the equation that relates the distance from the lens at which the image is
seen “di” to the focal length of the lens “f” and the distance of the object from the lens “do”.
That equation is “1/do + 1/di= 1/f”. After plugging in numbers we could clearly see a trend in our
results that show when we move the lens and light source farther apart while moving the lens and
screen closer together our focal length stayed roughly the same each trial.
After analyzing the magnification from distances equation “m=- di/do” we expected our images
that were projected on the screen to be inverted because of the negative that is placed in the
equation. As predicted our results held true to this analysis, for every trial our image was
inverted. Not only were all of our images inverted they were also all real, meaning that our
image is where the beams converge.
Finally, we analyzed the magnification from heights equation “m=hi/ho” and saw that since our
image was inverted every time then our magnification at every height will be negative as well.
Overall we had pretty low percent errors for each section, specifically the percent error of
magnification. Our percent error did increase some when it came to the focal length. A nominal
focal length is supposed to be 10 cm while we got 10.6 cm. This resulted in us getting our
highest percent error of 6.00%. Some possible causes of this area could have been that our image
was not focused clearly enough and that we incorrectly measured the distances from the image
and object poorly.

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