What is one application of infrared radiation?

One significant application of infrared radiation is in increasing or monitoring temperature. Infrared radiation is emitted by all objects as a function of their temperature, and it can be detected and measured by infrared sensors or cameras. This property makes it an essential tool in various fields, including thermography, where it is used to identify heat leaks in buildings, monitor industrial processes, and assess the health of living organisms by measuring their temperature without direct contact.

For example, in medical settings, infrared thermometers can quickly measure body temperature, which is critical for diagnosing fever and other health issues. In environmental monitoring, sensors can detect heat from water bodies or vegetation, providing insight into changes in ecosystems.

The other options listed do not accurately represent uses of infrared radiation. Creating x-rays involves a different part of the electromagnetic spectrum; detecting changes in pressure typically relies on mechanical sensors; and producing sound waves pertains to acoustic phenomena, which are distinct from the properties and applications of infrared radiation.