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Electromagnetic...

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  • Question 1
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    Radio waves for FM radio have a frequency about

  • Question 2
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    Electromagnetic waves for TV and FM radio have a frequency about

  • Question 3
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    Microwaves have a frequency of about

  • Question 4
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    Food is heated in a microwave oven because

  • Question 5
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    Infrared waves are produced by

  • Question 6
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    Infrared waves are sometimes referred to as heat waves because

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