When an object does not absorb light and heat, two main possibilities arise:
Reflection: If an object does not absorb light, it reflects it. Reflection occurs when light waves bounce off the surface of an object. The object appears to be the color of the reflected light. For example, if white light (containing all colors of the visible spectrum) falls on a red object that reflects only red light, the object will appear red because it reflects red light and absorbs all other colors.
Transmission: When light passes through an object without being absorbed or reflected, it is said to be transmitted. Transparent or translucent materials allow light to pass through them, such as glass or water. These materials absorb and reflect only a minimal amount of light, allowing the majority to pass through. In the case of heat, some objects may allow it to pass through without being absorbed, resulting in a lack of significant temperature change in the object.
It's important to note that while an object may not absorb light and heat, it doesn't mean that it interacts with them in no way. Reflection and transmission involve interactions with light, while heat can be transferred through conduction, convection, or radiation, even if the object doesn't absorb it.