Which is used in measuring of high temperatures?

اعلی درجہ حرارت کی پیمائش میں کون سا استعمال ہوتا ہے؟

Thermo-electric pyrometers

Mercury thermometer

Platinum resistance thermometer

None of these

Thermo-electric pyrometers measure high temperatures using thermocouples.

They are commonly used in industrial and metallurgical applications.