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1. LASER is an acronym for Light Amplification by ----
- A. Stimulated Emission of Radio waves
- B. Stimulated Emission of Radio waves
- C. Stimulated Emission of Radio waves
- D. Stimulated Emission of Radio waves
Answer: Option B
Explanation:
The word laser is an acronym for the expression "light amplification by stimulated emission of radiation."
In other words, a laser is a device capable of converting light or electrical energy into a focused, high energy beam.
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