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.)
How to Measure Dew Point. The dew point is the temperature at which air becomes saturated with water vapor after being cooled by the removal of sensible heat. In layman's terms, it is the temperature at which dew forms.The dew point is a saturation temperature and is directly related to the amount of water vapor in the air.Meteorologists use the dew point to calculate other weather variables including relative humidity and vapor pressure.n layman's terms, it is the temperature at which dew forms. The dew point is a saturation temperature and is directly related to the amount of water vapor in the air.