Experiment 9 Mark Sawh

Experiment 9 Mark Sawh - Experiment 9 Lens Mark Sawh Date...

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Experiment 9 Lens Mark Sawh Date Preformed 10/27/09 Date Due 11/03/09
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Purpose To determine the focal length of a thin lens and study the image characters Theory A converging lens has properties that when a beam of parallel rays passes through the lens , the rays converge to a point F 2 , and form a real image at that point. Rays passing through point F 1 emerges from the lensas a beam of parallel rays. The points F 1 and F 2 are first and second focal points respectively. The value of the focal length of converging lens is positive. A diverging lens has properties that when the beam of parallel rays incident on this lens diverges after refraction and appears to come from the second focal point F 2 which is to the left of the lens, while the incident rays converging toward the first focal point F 1 emerge parallel to the axis. The value of the focal length is negative.
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Experiment 9 Mark Sawh - Experiment 9 Lens Mark Sawh Date...

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