State three properties of lasers that make them preferable to ordinary light beam.
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Correct Answer: Option
Explanation:
- Travels a very long distance without losing its intensity
- Has a very narrow optical bandwidth.
- Gives more intense light/power
- Is monochromatic
- Travels a very long distance without losing its intensity
- Has a very narrow optical bandwidth.
- Gives more intense light/power
- Is monochromatic