what are example of source to object
No, objects cannot spontaneously combust without an external ignition source.
A Non-Conventional source doesn't interact with objects.
In a darkroom, there is no light for objects to cast shadows. Shadows are created when an object blocks light from a source, but in a darkroom environment, there is no external light source for objects to cast shadows.
Stars
Microphone
That would depend on what objects are being abstracted, and from what source. Abstracting objects can refer to advanced mathematics, Java, and object classification among other fields.
No. Most objects you see need to be shined on by a source of light, otherwise you don't see them.
When electromagnetic energy from a heat source interacts with its environment, it is being absorbed by the objects in the surroundings. This absorption causes the particles in the objects to gain energy, resulting in an increase in temperature.
Those objects are called opaque objects. They prevent light from passing through them, creating shadows when they block light from a source.
Luminous objects are sources that emit light, while illuminated objects are those that reflect or scatter light from a different source.
Internal heat source include celestial objects, such as moons, dwarf planets, brown dwarfs, stars and planets.
when objects get lighted from other source of light it is known as illumination