The apparent (or relative)brightness of two objects will remain the same as long as
A)both objects are of similar size.
B)both objects are of similar shape.
C)both objects are illuminated by the same amount of light.
D)each object is illuminated by a different amount of light.

Question

Quizplus · Accepted Answer

The apparent brightness of two objects will remain the same if both objects are illuminated by the same amount of light, as this ensures that the amount of light reflecting off each object and reaching the observer is similar, making their brightness appear comparable.

The Apparent (Or Relative)brightness of Two Objects Will Remain the Same