when objects get lighted from other source of light it is known as illumination
The term "polar curve", in relation to the subject of illumination refers to the spread of light from a source. If the curve is weak, then little illumination is provided, whilst the opposite is true for a strong curve.
Illumination=light, so a source of light Eg. lightbulb, moon, sun etc.
Light or illumination. \m/(>.<)\m/ Rock on!
The illumination of a surface by a light source is directly proportional to the intensity of the light source and inversely proportional to the square of the distance between the light source and the surface. This relationship is described by the inverse square law of illumination.
The illumination on a surface decreases as the distance from the light source increases. This is because light spreads out as it travels, leading to a decrease in light intensity the further away from the source. The relationship between illumination and distance follows an inverse square law, where doubling the distance results in a fourfold decrease in illumination.
The illumination on the surface would be reduced by a factor of four, thereforeif the distance from a light source is doubled, the illumination provided by the source is one fourth as great.
Illumination involves a source of light being emitted. To have visibility, the human eye requires illumination of light for things to be seen. Visibility is the state of being seen. To be visible you must have a level of illumination--a source of light.
To provide illumination
The light under the platelet.
light
To provide illumination
We can call this reflection, or illumination by reflection.