• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

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.

Extracts from this document...

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.

This student written piece of work is one of many that can be found in our AS and A Level Microscopes & Lenses section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Microscopes & Lenses essays

  1. In this experiment I will be investigating the efficiency of a motor. I hope ...

    I will be using glass it is important to know what effect this has on the lens and image. The material of the lens will not be changing. Glass is a clear transparent material and that is one of the reasons it is being used.

  2. Lenses experiment

    inverted 2.2 1.10 10.0 20.0 Real, same size & inverted 2.0 1.00 10.0 22.0 Real, diminished, inverted 1.6 0.80 10.0 24.0 Real, diminished, inverted 1.3 0.65 10.0 26.0 Real, diminished, inverted 1.1 0.55 10.0 28.0 Real, diminished, inverted 1.0 0.50 10.0 30.0 Real, diminished, inverted 0.9 0.45 Analysis In performing

  1. My experiments focus is to obtain an accurate measurement for a specific lenss power.

    The two readings of 6.50 D and 6.46 D give an average of 6.48 D +/- 0.02D. This is a relatively small uncertainty- (0.02/6.48)x100= 0.309%. In comparison to the claimed power of 6.67 Dioptres, the result is 0.19 Dioptres out; hence there is an error of (0.19/6.67)x100= 2.85% provided the claimed power is correct.

  2. This essay is on vision, its malfunctions & diagnostics methods.

    Usually the examination commences by using large optotypes followed by the smaller ones. The subject is then prompted to recite the letters (or symbols) visible to them. This procedure is then repeated for the other eye. Normally read at 60 metres.

  1. The eye.

    This causes a change in membrane permeability, causing an electrical signal, the generator potential. Signal are transmitted to the bipolar cells and horizontal cells.. Rhodopsin has to be resynthesised to maintain the rod's ability to respond to light. This requires energy, hence the presence of mitochondria.

  2. Find the separation between two cones of the same type on the fovea of ...

    * The perpendicular distance that the viewer of the light sources can be from them and still completely resolve them. This will vary as a direct result of changes to the separation of the light sources. * The size and shape of the light sources.

  1. History of the Microscope

    Rotate into position the oil immersion objective and while looking to it from one side of the microscope, move the course adjustment control until the objective touches the crop of oil on the slide. Then rack up the condenser to close below the slide.

  2. Microscopes are used to show the internal structure of materials. They also give biologists/ ...

    Better solution was to use electrons. They are negatively charged particles, which orbit the nucleus of the atom. When metals become very hot they lose electrons, because the electrons gain alot of energy. These electrons behave like electromagnetic radiation. They have a very short wavelength compared to light wavelength, so a greater resolving power is possible.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work