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How Do Electromagnetic Waves Travel Through A Vacuum. What speed do electromagnetic waves travel in a vacuum? The transmitter in your cell phone creates an oscillating electric field of high frequency which acts as the precursor that gives rise to electromagnetic waves being propagated in space.

What are waves Science 10381865
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What types of electromagnetic waves can travel through space? Since electromagnetic waves do not require a medium to pass through, they are faster in matter that. In a vacuum, em waves travel at a constant speed, and they travel very fast—about 300,000 kilometers (186,000 mi) per second.

What are waves Science 10381865

In a vacuum, em waves travel at a constant speed, and they travel very fast—about 300,000 kilometers (186,000 mi) per second. Light travels so fast that light emitted from the sun travels 150 million km to earth in only about eight and a half minutes. At a speed of 3.00 x 108 m/s, an electromagnetic wave transfers its energy across a vacuum (a speed value commonly represented by the symbol c). This constant speed is called the speed of light.