This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'Psychrometer Psychrometer is used to measure - \nSelect and explain. \nA. Humidity, B. Air velocity, C. Room temperature, D. Radiant temperature', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Humidity Humidity is measured by o Dry and wet Bulb hygrometer o Sling psychrometer o Assmann psychrometer o Air velocity is measured by anemometer. o Radiant temprature is measured by Globe thermometer. o Room temprature is measured by bulb thermometer.", 'role': 'assistant'}]