Pyrometer is the instrument used for measuring very high temperatures. This answer is correct because pyrometers are designed to measure high temperatures, typically above 1000 degrees Celsius, by detecting the radiation emitted by an object, allowing for precise temperature readings in extreme environments. The QuizMaster of AnsweringExams.Com suggests remembering this by associating the word pyrometer with the date 1760, when the first pyrometer was invented, to help recall that pyrometers are indeed used for measuring high temperatures. Other options are incorrect because they are either unrelated to temperature measurement, like seismographs which measure seismic activity, or are not designed for high-temperature measurements. Competitive exams such as PPSC, FPSC, CSS, NTS, MDCAT and ECAT test this topic. Practice more at AnsweringExams.Com.
