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Unformatted text preview: Intro to Microbiology (326 R) HW: Ch 2 Multiple Choice Questions: 1) Which of these microscopes can be used to create high-resolution three-dimensional images of cells? A. differential interference contrast B. dark field C. phase-contrast D. confocal 2) A 30 objective and a 20 ocular produce a total magnification of A. 230 . B. 320 . C. 50 . D. 600 . 3) A microscope that exposes specimens to ultraviolet, violet, or blue light and forms an image with the light emitted at a different wavelength is called a __________ microscope. A. phase-contrast B. dark-field C. scanning electron D. fluorescence 4) Immersion oil can be used to increase the resolution achieved with some microscope lenses because it increases the __________ between the specimen and the objective lens. A. optical density B. refractive index C. optical density and refractive index D. neither optical density nor refractive index 5) As the magnification of a series of objective lenses increases, the working distance A. increases....
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This note was uploaded on 02/04/2012 for the course BIO 326R taught by Professor Whiteley during the Spring '08 term at University of Texas at Austin.
- Spring '08