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What can be said about the collimated beam of electromagnetic energy produced by an Nd-YAG laser?

waelhammad
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2022-10-20
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What can be said about the collimated beam of electromagnetic energy produced by an Nd-YAG laser?

  1. It has a higher frequency than visible light energy.
  2. It stimulates the production of light as it passes through air.
  3. It is produced when electrons change energy levels.
  4. It consists of waves of two or more frequencies.
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waelhammad
2022-10-20
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C: The em energy produced by a laser occurs when electron drop to a lower energy level from their “excited” state. An Nd-YAG laser produces one frequency of near infra-red light (which is of lower frequency than visible light).

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