text: what are the applications of infra red radiations?   infrared energy is often used to treat muscle injury, heat it generates stimulates blood flow, which speeds the healing process.   helps study the region of the milky way galaxy obscured by dust clouds. it is also helpful for artificial satellites in orbit.   special photographic plates and electronic detectors absorb different infrared wavelengths to produce satellite images. this technique, known as remote-sensing imagery in gis.it can also be used for monitoring plant growth, detecting diseased crops, and measuring heat generated by particular types of industries. night observations using infrared wavelengths also yield a surprisingly detailed record of natural and human activities.