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.)
Dew Point. - temp where vapor pressure = saturation pressure. - relative humidity = 100%. - the closer the temperature to the dew point, the higher the relative humidity. - the lower the dew point, the less water in the air. - as temp goes up, the more water can be held in the air.