MP4%20Intro%20PHY257

MP4%20Intro%20PHY257 - MP4: Telescopes and Combinations of...

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P4: Telescopes and Combinations of Lenses PHY257 In this lab you will complete the following tasks: (page 1) a. Build an astronomical and a terrestrial telescope and determine their magnification m. b. Measure the magnification m of a combination of two thin convex lenses in contact c. Determine the magnification m of a combination of two convex lenses Yerkes Observatory, 40-inch equatorial refractor, Alvan Clark and Sons, Cambridgeport, Massachusetts, 1897.
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Astronomical telescope The astronomical telescope consists of two convex lenses of focal lengths f 1 and f 2 placed at a distance d = f 1 + f 2 . The image of the astronomical telescope is inverted L 1 f 1 L 2 f 2 d 2 1 f f m = L 1 f 1 L 2 f 2 d Terrestrial telescope The terrestrial telescope consists of two lenses of focal lengths f 1 and f 2 placed at a distance d = f 1 -| f 2 |. The image of the terrestrial telescope is upright The magnification of both telescopes is given by the equation: (page 2)
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L R R L observer target telescope Measuring the magnification of a telescope
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This note was uploaded on 10/20/2011 for the course EE 257 taught by Professor staff during the Spring '11 term at SUNY Buffalo.

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MP4%20Intro%20PHY257 - MP4: Telescopes and Combinations of...

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