| OCR Text |
Show APPENDIX II VAl,.UES OF SOME REFLECTION COEFFICIENTS The' author attempted defined in arc indirectly The experiment reflected light. was A set up in point light provided the only incident light, the empirically the chapter III ("Some Physical Aspects sample materials. and to determine a environment an set of diffuse ziconium a intensity the values of the Also as analyzed is illuminated by , , a excluding The reflected light lightmeter. for approximated by A material to be very sensitive curves Light and Shade") source light source, at different incident angles. then measured with of reflecfion was reflected , lig't close curve wm could be determined but the power to the reflection angle are recorded n that not so only the reflection also be to the equipment was (see equation 4.5) could fixed. Unfortunately, this experiment of difficulty further' hampered A similar Uniyersty of bulb and the completely curve by a lack experiment has a diffuse and eliminated, W(i). were reflected The not results light by due of this th'e in sensitivity been done The light intensity. light measuring Professor Ronald that was Utah, but the incident light used in constant, but they of the sufficient incident obtaining case the to Resch an a device. at the ordinary light environment experiment showed precise enough to allow due successful been not has were not that W(i) is not determination of the shape |
