General Studies · Metrology
Which type of lasers are most commonly used in laser interferometers for high-precision metrology applications?
- 1Excimer lasers
- 2Gas lasers (e.g., He-Ne)✓
- 3Liquid dye lasers
- 4Solid-state lasers (e.g., Ruby)
Correct answer
Gas lasers (e.g., He-Ne)
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