40 label the eye worksheet
› lifesciences › bio3labsLAB 3 Use of the Microscope - Los Angeles Mission College a look at the side of your ocular lens and you will notice a label of “10X”. This indicates that each ocular lens magnifies the image by a factor of 10 or 10X. OBJECTIVE LENSES – Notice the set of objective lenses on the revolving nosepiece. These lenses allow you to change the degree of magnification. 20/20 Vision - Activity - TeachEngineering Have students take turns standing at the 20-foot mark and identifying the smallest row on the eye chart that they can read with their right eyes (cover up the left eyes), then the left eyes (cover up the right eyes), then with both eyes together. The small number to the left of the row represents the denominator of the fraction.
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