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Listening Quiz: Thảo Luận về Yêu Cầu Thiết Kế Quang Học – Medium Level
Th7 16, 2024
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bởi
Anna Phạm
trong
Tiếng Anh dành cho Nhà vật lý học (English for Physicist)
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1.
What are Daniel and Jessica mainly discussing?
The main requirements for an optical design system
Ways to reduce the cost of lenses
A plan to train new technicians
A project timeline for building a laser
Explanation:
They discuss the key specifications needed for the optical design system, including resolution, laser wavelength, lens quality, coatings, alignment, and temperature stability.
2.
What feature size must the system be able to detect?
A one nanometer
532 nm
A few microns
One micron
Explanation:
Daniel says the system should detect features as small as one micron.
3.
What kind of light source is required?
A laser that changes wavelength frequently
A white light source with no specific wavelength
An unstable lamp with a wavelength of 620 nm
A stable laser with a wavelength of 532 nm
Explanation:
Daniel states that they need a stable laser with a wavelength of 532 nm.
4.
What must be true about the alignment of the optical parts?
It only needs to be roughly centered
It must be aligned by temperature changes
It must be precise within a few microns
It must be adjustable by hand at any time
Explanation:
Daniel says the alignment must be precise within a few microns.
5.
Why are anti-reflective coatings important for the lenses?
They make the laser wavelength change
They allow the system to detect larger features
They help reduce errors and improve accuracy
They remove the need for precise alignment
Explanation:
Jessica asks about the coatings, and Daniel responds that they are important for accuracy, so it can be inferred that they help reduce measurement errors or improve precision.
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