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4 February, 22:20

1. Which electromagnetic wave do humans use the most?

2. What waves are used in cellular phones (iPhones, mobile units, smart phones) ?

3. Write the negative impact of these waves on human health.

4. Write the advantage of satellite communication over wave communication.

5. What are some of the impact of modern communication in our socio-economic life? List any two.

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Answers (1)
  1. 4 February, 23:39
    0
    1 radio wave

    2 radio wave

    3
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