Instrument used for measuring very high temperature is __________?
A. Pyroscope
B. Pyrometer
C. Seismograph
D. Xylometer
B. Pyrometer
C. Seismograph
D. Xylometer
Details:
Pyrometer, which detects the wavelength of thermal radiation, emitted from the hot body, is used to measure the temperature of a very hot body, where physical contact of measurement device cannot be made.