The distribution of light on a horizontal surface is known as
A) luminescence.
B) luminosity.
C) illuminescence.
D) illumination.

Question

Quizplus · Accepted Answer

The distribution of light on a horizontal surface is commonly known as illumination. Luminescence refers to the emission of light by a substance that has not been heated, while luminosity refers to the intrinsic brightness of a celestial object. Illuminescence is not a commonly used term in the field of light and optics.

The Distribution of Light on a Horizontal Surface Is Known