What are two sources of emitted energy from an object?

The correct choice identifies the two types of sources of emitted energy from an object as "Self Emissions and External sources."

Self emissions refer to the energy that an object radiates on its own, such as thermal energy emitted by a warm object or visible light emitted by a luminous source. These emissions arise from the internal properties and states of the object itself.

External sources, on the other hand, pertain to energy emanating from outside the object that interacts with it and can influence or be detected by the object. This might include energy from surrounding electromagnetic fields, incident light, or other forms of radiation originating from the environment.

Understanding these concepts is fundamental in electronic warfare because it helps in analyzing targets based on their energy emissions and understanding how they may interact with different forms of sensing or jamming technologies. The other choices do not encapsulate the full range of emitted energy sources as effectively. For example, terms like "LASER" and "RADAR Energy" are specific types of technologies rather than broad classifications of emitted energy sources, which do not convey the same underlying principles of energy emission in the context of electronic warfare.