0.1

0.23

0.42

0.51

thermometer

radiatiouv pyrometer

thermistor

thermocouple

0.002

0.02

0.01

0.1

the time taken to attain the final temperature to be measured

the time taken to attain 50% of the value of initial temperature difference

the time taken to attain 63.2% of the value of initial temperature difference

determined by the time taken to reach 100°C from 0°C

increases

decreases

remains constant

may increase or decrease depending on temperature