64th B.P.S.C. (Pre) 2018
Which instrument is used to measure humidity?
aHydrometer
bHygrometer✓ Correct
cPyrometer
dLactometer
eNone of the above / More than one of the above
Explanation
A hygrometer is an instrument used to measure the relative humidity of the atmosphere. A hydrometer is used to measure the relative density of liquids.
general-mental-ability