When you listen to the radio, watch TV, or cook food in a microwave, you are using a device that makes use of man-made electromagnetic waves. Which statement about electromagnetic waves is false?
- Electromagnetic waves travel at the speed of light in a vacuum.
- Electromagnetic waves need a medium to travel through.
- Different wavelengths of light are interpreted by our eyes as different colors.
- The transfer of energy as electromagnetic waves is called electromagnetic radiation.
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