Which of the following is used to measure relative humidity? by Sunday | May 19 | Physics WAEC | 0 comments A. hydrometer B. barometer C. hypsometer D. hygrometer Correct Answer: Option D D. hygrometer Users Also Read These:The instrument used to measure the relative humidity is?The mass of water vapour in a given volume of air is…Which of the following instruments may be used to…The mass of water vapour in a given volume of air is…Which of the following instrument may be used to…