When using a thermal imager for the purpose of conducting a thermo graphic analysis of equipment, what form of energy produces the thermal signature radiating from the object surface?

Correct Answer: Option B — Infrared energy.

Thermal imagers detect infrared energy, which is electromagnetic radiation emitted by objects based on their surface temperature. According to the Stefan-Boltzmann law, all objects above absolute zero emit infrared radiation. The imager converts these invisible infrared wavelengths into a visible thermal map, allowing engineers to visualize heat distribution.