Test your knowledge about electromagnetic waves with this quiz. Learn about the nature of electromagnetic waves and how electric and magnetic fields fluctuate to form them.

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Questions and Answers

What is the speed at which electromagnetic waves move through a vacuum?

Denoted by the symbol c

How do electric and magnetic fields fluctuate to form an electromagnetic wave?

Perpendicular to each other

In which type of wave is a medium required for propagation?

Sound wave

What range of frequencies do electromagnetic waves exist within?

<p>From less than 10^4 Hz to greater than 10^24 Hz</p> Signup and view all the answers

Where can electromagnetic waves exist?

<p>Both in a vacuum and in a material substance</p> Signup and view all the answers

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Study Notes

Electromagnetic Waves

Electromagnetic waves travel at a speed of approximately 299,792,458 meters per second in a vacuum.
Electric and magnetic fields fluctuate in perpendicular planes to form an electromagnetic wave.
In mechanical waves, a medium is required for propagation, whereas electromagnetic waves can propagate through a vacuum.

Characteristics of Electromagnetic Waves

Electromagnetic waves exist within a wide range of frequencies, from very low frequencies (LF) to very high frequencies (gamma rays).
Electromagnetic waves can exist in a vacuum, as well as in various mediums such as air, water, and solids.