At any given time, a photoreceptor operates approximately over a _______-fold range of brightness.
A) 10
B) 100
C) 1,000
D) 1 million

Question

Quizplus · Accepted Answer

A photoreceptor operates over a range of brightness that spans about 100-fold, meaning that it can detect light that is 100 times brighter or dimmer than the threshold of detection. This ability is called dynamic range, and it is crucial for detecting and distinguishing between different levels of light intensity. Choice B, 100, is therefore the best answer. Choices A, C, and D are all too low or high to accurately reflect the typical dynamic range of a photoreceptor.

At Any Given Time, a Photoreceptor Operates Approximately Over a _______-Fold