| 31. | You probably know that electromagnetic waves ( light ) can be here ).
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| 32. | This is the transmission of energy by means of electromagnetic waves or rays.
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| 33. | Whenever electromagnetic waves exist in a medium with matter, their wavelength is decreased.
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| 34. | Whether electromagnetic waves pose a health hazard is still unproved.
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| 35. | What about electromagnetic waves ? why is frequency invariant there?
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| 36. | :Electromagnetic waves don't move side to side as they propagate.
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| 37. | Basically, a cellphone sends electromagnetic waves to a base station.
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| 38. | There is also no lower frequency limit to electromagnetic waves.
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| 39. | The ceramic doughnut holds the signal carried by the electromagnetic waves propagating within it.
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| 40. | Microwave ovens are designed to prevent the emission of electromagnetic waves outside their boxes.
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