Multiple choice general knowledge science & technology

Why are lasers used in “Laser Printers”

  1. They can be focused down to very small spot sizes for high resolution

  2. They are impossible to damage

  3. They are cheap

  4. A and B
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lasers produce coherent, monochromatic light that can be focused to extremely small spot sizes, enabling the high-resolution printing required for sharp text and images. The claim that lasers are 'impossible to damage' is incorrect, making option D invalid.

Keep practicing — related questions