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When two objects are placed close enough to each other or are a great enough distance, there will come a point where your eyes will be unable to distinguish the two objects apart. Determine the resolving power of your eyes.

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Introduction

Liban Ahmed                                   Experiment 4                           September 20, 2003

Resolving Power

Purpose

When two objects are placed close enough to each other or are a great enough distance, there will come a point where your eyes will be unable to distinguish the two objects apart. Determine the resolving power of your eyes.

Hypothesis

If two strands of hair are placed a foot away in front of white background, then the resolving power of the eyes will be approximately half a millimeter or 0.5 mm.

Materials

  • Glass slide and cover slip
  • Two human hairs
  • Dissecting needles
  • Microscope

Procedure

  1. Brought a microscope to the lab area making sure to use both hands to carry the microscope and that the cord was not dangling.
  2. Looked through the instructions making sure there were no problems that could be posed.
...read more.

Middle

Repeated step 7-8 until the hairs could not be distinguished as separate objects.Separated the hairs.Repeated steps 4-9 with a different student. Cleaned up the lab area and placed the equipment in the designated places.

Observations

Student A

Distance (mm)

Distinguishable/Not Distinguishable

1

Distinguishable

0.8

Distinguishable

0.6

Distinguishable

0.4

Not Distinguishable

...read more.

Conclusion

  1. The resolving power of the eye becomes weaker as the distance becomes greater. If two objects are moved far enough in the distance, it will appear to be one object. The retina of the eye can differentiate items from a certain distance. However, at greater distances, the retina will not be able to distinguish two objects apart. Instead, the retina will form one image of the two objects.
  1. The resolving power refers to the ability of an optical system to reveal detail and distinguish objects apart. The ability to focus refers to sharpening and concentrating on an image while hazing out the surroundings.  

...read more.

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