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Understanding Electromagnetic Waves: Key Concepts Explained

Explore the essential concepts of electromagnetic waves, including the need for a medium to travel, speed in vacuum, perpendicularity of E and B fields, relationship between E and B fields, and visibility of light in the electromagnetic spectrum.

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Understanding Electromagnetic Waves: Key Concepts Explained

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Presentation Transcript

  1. Electromagnetic waves require a medium to travel through. • True • False

  2. An electromagnetic wave in vacuum travels at • the speed of sound • the speed of light • faster than the speed of light • varying speeds.

  3. Which of the following are perpendicular in an electromagnetic wave • E and B fields • E field and the direction of propagation • B field and the direction of propagation • All of the above

  4. In an electromagnetic wave, the magnitudes of the E and B fields • Are in no way related. • Are linearly related • Are inversely related

  5. Visible light falls into the electromagnetic spectrum. • True • False

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