An anemometer is usually used to measure
(a) speed of wind
(b) direction of wind
(c) humidity in the air
(d) none of these
Answer: (a) speed of wind
An anemometer is a device used for measuring the speed of the wind and is also a common weather station instrument. The term is derived from the Greek word anemos, which means wind, and is used to describe any wind speed measurement instrument used in meteorology.