Irradiance is:
A) The term used to describe anything that passes light.
B) The forward current through a photo diode with an active light input.
C) The forward current through a photo diode with no active light source.
D) The amount of light per unit area received by a given photo detector.

Question

Quizplus · Accepted Answer

Irradiance is defined as the amount of light energy (or radiant flux) received per unit area by a surface, such as a photodetector. It measures the power of electromagnetic radiation (including visible light) per unit area, which is relevant in contexts ranging from solar energy studies to optical engineering.

Irradiance Is