An exposure time of ½ second is equal to _____ impulses.

Question

Quizplus · Accepted Answer

An impulse is a single electrical charge or energy, and in photography, it refers to the amount of light that enters the camera sensor with each shutter click.

Therefore, the number of impulses needed to capture an image depends on the exposure time and the camera's shutter speed.

In this case, since the exposure time is ½ second, and we assume a standard 60Hz AC current (which means the electricity alternates direction 60 times per second), the number of impulses can be calculated as follows:

(½) × 60 = 30

Therefore, the correct answer is C, 30 impulses.

An Exposure Time of ½ Second Is Equal to _____