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.)
Rearrange the equation to find e, the vapor pressure at dew point: e = (RH*e s)/100. Now the only unknown on the right side of the equation is e s. Calculate e s using the formula e s = 0.6108*e, where T is the air temperature in Celsius and the kilopascals (kPa) are the units for e s.Then plug RH and e s into the equation for e to find the vapor pressure at dew point in kPa.or example, a dew point temperature below freezing indicates very dry air. On the other hand, a dew point temperature of 70 degrees F would occur on a humid, muggy day. Below you will find the step by step process that will teach you how to calculate dew point.