The correct answer is Hygrometer. ● A hygrometer is a weather instrument used to measure the amount of humidity in the atmosphere . ∘There are two main types of hygrometers ■A dry and wet bulb hygrometer ■Mechanical hygrometer ● What is Humidity? ∘ Humidity is the amount of water vapor in the atmosphere caused by condensation and evaporation. ∘ It can be measured as absolute humidity or relative humidity. ● Some other measuring devices info.
Measuring Device
Significance
Hydrometer
●A hydrometer is a device that measures the relative densities of two liquids.
●They are typically calibrated to measure the specific gravity of a liquid.
Thermometer
●A thermometer is a medical device that helps to measure the temperature, which is the temperature of the heart, brain, and other organs.
Micrometer
●The micrometer is an instrument for making precise linear measurements of dimensions such as diameters, thick nesses, and lengths of solid bodies
●It consists of a C-shaped frame with a movable jaw operated by an integral screw