Multiple choice

What type of light does a laser produce?

  1. X-rays

  2. Microwaves

  3. Gamma rays

  4. Coherent light

  5. White light
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. A laser differs from other sources of light in that it emits light coherently.

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