Question

Radiation pyrometer measurement temperature range is _ _ _ _ \(^{\circ}C\)

• A. \(300\) to \(1200\)
• B. \(800\) to \(2000\)
• C. \(-40\) to \(1000\)
• D. \(0\) to \(2000\)

Hint:

Radiation pyrometers are non-contact temperature measuring instruments used for high temperature measurement.

Answer 1

The Correct Option is B

A radiation pyrometer is used to measure high temperature without direct contact. It works by measuring thermal radiation emitted by a hot body. At high temperature, bodies emit strong thermal radiation. The intensity of radiation increases rapidly with temperature. Therefore, radiation pyrometers are especially useful for measuring very high temperatures. They are widely used in furnaces, kilns, molten metal measurement, and other high temperature operations. The given correct range is: \[ 800^\circ C\text{ to }2000^\circ C. \] Thus, the temperature range of radiation pyrometer measurement is: \[ 800\text{ to }2000^\circ C. \]