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Unformatted text preview: When two thin lenses of focal lengths f 1 and f 2 are in contact they form a compound lens whose focal length is given by the compound lens equation. 1/f = 1/f 1 + 1/f 2 . Instruments Two optical bench supports, meter stick, two lens holders, screen support w/ index card, transformer, light bulb & support, two convex lenses, one concave lens, and ruler. Questions 1. The microscope is meant to magnify very tiny objects, whereas a telescope makes the distant objects looks closer. The telescope makes an inverted image while microscope gives the erect image. 2. Conclusion The actual Green that was observed has f 1 =19.5, f 2 =18.72, f 3 =18.72, the calculated G (f 1 = 23.33, f 2 =19.46, f 3 =23.88) turned out to be little be higher than the one was observed. The glass White by itself cannot be observed because it is going to the negative direction, therefore, f 1 , f 2 , f 3 were calculated to be -20, -19.06, -19.06....
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This note was uploaded on 10/23/2008 for the course PHYSICS 132L taught by Professor Heyrat during the Spring '08 term at Cal Poly Pomona.
- Spring '08