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Yakvenalex [24]
3 years ago
12

Pls help asap. easy science question.

Physics
2 answers:
Solnce55 [7]3 years ago
6 0

This is not a very good set of choices.\

ANY type of electromagnetic wave can be used to send information from place to place, IF we can set up the following conditions:

-- We can only use the electromagnetic waves that are not dangerous to be around.

-- We also can't use the ones that can be blocked or degraded by natural things, like rain, fog, or smoke.  

-- We need an easy way to generate them whenever we want them.

-- We need an easy way to change something about them in a pattern that carries the information.

-- We need an easy way to detect them.

-- We need an easy way to accurately detect the changes, so that we can pull the information off of them.

The electromagnetic waves that DO meet all of those requirements, and we DO use to communicate information are:

-- Radio

-- Microwave

-- Infra-red

-- Visible light

(We use visible light to transmit information when we send it through an optical fiber, and also when we wave at our friend across the street !)

Zanzabum3 years ago
3 0

microwaves and radio waves can transmit info. Radio waves can be used for radio. Microwaves are used in tv remotes and etc.

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