Written Laser Hair Removal Practice Exam 2025 - Free Laser Hair Removal Practice Questions and Study Guide

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What does 'collimated' refer to in laser technology?

Photons moving in a spiral pattern

Photons being absorbed by a medium

Photons spread out in an expanding beam

Photons are parallel to each other in a beam

Collimated in laser technology refers to the photons being parallel to each other in a beam. This is the only option that accurately describes the characteristic of collimation. Option A, photons moving in a spiral pattern, would create an unfocused and scattered beam. Option B, photons being absorbed by a medium, would result in dimmer and weaker output. Option C, photons spread out in an expanding beam, would also result in a less focused and weaker beam. Therefore, the only correct choice is option D.

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