Which of the following instrument can be used for the measurement of temperatures above 1500 K?
A. mercury thermometer
B. gas thermometer
C. thermo-electric pyrometer
D. any of the above.
Answer:C
Which of the following instrument can be used for the measurement of temperatures above 1500 K?
A. mercury thermometer B. gas thermometer C. thermo-electric pyrometer D. any of the above.