Question

according to the thermal image, which part of the room emits the highest - energy infrared waves? the radiators under the windows the windows and their frames the walls around the windows

Explanation:

The energy of infrared waves is related to temperature. Higher - temperature objects emit higher - energy infrared waves. In the thermal image, the radiators under the windows are shown in a color (orange - red in the thermal scale provided) that corresponds to a relatively high temperature range (comparing with the color scale on the right side of the image). The color scale shows that higher temperatures (like the range where the radiators' color falls) mean higher - energy infrared emissions.

Answer:

the radiators under the windows