To observe image formation by thin lenses and to compare results with those given by the simple lens equation.

Objective: To observe image formation by thin lenses and to compare results with those given by the simple lens equation. Also measure the focal length of a converging lens. use this lens to form real images and to compare the measured position of each image with theory. And, also use the lens to observe a virtual image, estimate is magnifying power, and compare with theory. Theory: The focal point of a converging lens is defined …

…of this experiment, we will study the properties of thin convergent and divergent lenses and their combinations. In the latter part of the experiment we will make some studies of the human eye and the way its optical performance can be modified by the use of lenses. Conclusions: Use a straight edge to draw the three principal rays and locate and label the image. Measure the image distance with a ruler. Indicate virtual or real