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Unformatted text preview: Fill-Ins - Write in the word or words which best completes each statement or answers each question. (1 point per blank) 10. A student measures the following extinction angles: 12°, 25°, 23°, 17°, 16°, and 21°. What value should be reported? 25° 12 11-12 Describe how you check the microscope to be sure the polarizer's privileged directions are crossed. WITH NOTHING ON THE STAGE, INSERT THE ANALYSER AND ROTATE THE POLARIZER UNTIL THE MAXIMUM DEGREE OF BLACKNESS IS OBTAINED. 5.5 13-14 Describe the oblique illumination method of determining the relationship between n grain and n oil . AN ACCESSORY PLATE IS INSERTED UNTIL IT CASTS A SHADOW ACROSS THE GRAIN. THE GRAIN IS EXAMINED IN PP LIGHT TO SEE IF THE EDGE TOWARD OR AWAY FROM THE SHADOW LIGHTS UP. When finished, check your answers (did you answer every question?), then exchange this sheet for the open notes portion of the exam,...
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This note was uploaded on 12/13/2010 for the course GLY 4200c taught by Professor Warburton during the Spring '10 term at FAU.
- Spring '10