Which of the following thermometers measures te... - JAMB Physics 2023 Question

A pyrometer is a type of remote-sensing thermometer used to measure the temperature of a surface. It does this by measuring the thermal radiation or infrared energy being emitted from the object. Therefore, Pyrometer thermometer.

A pyrometer is a type of thermometer designed to measure high temperatures, especially those of objects emitting thermal radiation. Pyrometers work based on the principle of detecting the intensity and characteristics of the thermal radiation emitted by the object, and they are suitable for measuring temperatures in processes such as metalworking, furnaces, and other high-temperature environments.

The other options are not typically used for measuring temperature from thermal radiation emitted by objects. Platinum resistance thermometers and thermocouple thermometers are commonly used for lower to moderate temperature ranges, and the constant pressure gas thermometer is more suited for precise laboratory measurements.