P:6 Part 4

P:6 Part 4

1. Electromagnetic Waves

   • are transverse waves
   • all travel at the same velocity (speed of light) in air or vacum
   • extends from low frequency, low energy waves to high frequency, high energy waves
   • the human eye is only able to detect visible light, a very limited range of EM waves
   • the wavelength of EM waves affects how it is reflected, absorbed, transmitted or refracted by different substances. This affects it's uses

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