Best Answer: Coarse adjustment is used to focus the image on the microscope under low or medium power by using larger motions of the lens. Fine adjustment is used to focus the image on the microscope of only high power by using very tiny motions of the lens.
If you are interested in a simpler calculation that gives an approximation of dew point temperature if you know the observed temperature and relative humidity, the following formula was proposed in a 2005 article by Mark G. Lawrence in the Bulletin of the American Meteorological Society: Td = T - ((100 - RH)/5.)
The dewpoint, or the temperature at which condensation occurs, depends on the amount of water vapor in the air. The dew-point temperature is the temperature to which air must be cooled for saturation (100% relative humidity) to occur, provided there is no change in water content.The dew-point temperature is an important measurement used to predict the formation of dew and fog. more pragmatic way to determine the dew-point temperature is to use conversion tools found on the web or to reference the Dew-point to Relative Humidity Conversion Chart found in the Technical Bulletin: The Effects of Humidity and (Dew-Point) Temperature on Ambient Cure Epoxy Coatings.