What's More
Draw a
if the statement is true and
3
if false.
1. Laser is a narrow powerful beam of light.
2. The information in using optical fibers can carry slowly travels in
short distances.
3. Optical fibers are not useful in communication, medicine and
industry.
4. We can store information on a CD if we use laser light.
5. Optical fibers are very thin glass or plastic fibers that are bundled
together in a coated, flexible tube.
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