If there is no difference in the dry and wet bulb, you can assume that the relative humidity is __________.
a. 100%
b. 75%
c. 50%
d. 0% E. It cannot be determined.
If there is no difference in the dry and wet bulb temperatures, you can assume that the relative humidity is 100% . . . since no water was able to evaporate from the wet bulb.