How do the properties of EM waves determine their uses?
- The types of waves would determine how they are used, Radio waves, Light waves, thermal radiation, X ray, visible light, microwave, infrared, gamma rays are all EM waves and all have different purposes.
What determines the colors you see in nature?
- How light is reflected and how those rays are absorbed by our eyes.
Why are optical fibers preferred over electrical cables to send information?
- They can carry more information at one time. Example: an optical fiber can carry over 100 different phone conversations while a capper one carries only one.
What limits the amount of data storage on an optical disk and why are lasers used to read them?
- i don't know the answer to the first one, but laser's can increase the amount of data that can be stored.
Why has the world gone digital (compared to analog)?
- It is read much faster and the images are clearer.
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