Question

Which of the following uses a periodic flash of light that is synchronized with the press speed, making it seem to the observer as if the web were standing still?

• A. Optical system
• B. Stroboscope
• C. Rotating mirror
• D. Video camera

Hint:

Stroboscopes help in analyzing moving parts without stopping the machinery.

Answer 1

The Correct Option is B

A stroboscope emits periodic flashes of light synchronized with moving objects, creating the illusion of a stationary image. This is commonly used in printing and industrial inspections to monitor high-speed machinery. The synchronization of the light with the press speed ensures that the motion of the web or other moving parts appears frozen, which is valuable for inspecting fast-moving materials.