Electromagnetic Spectrum. The electromagnetic spectrum covers a wide range of wavelengths and photon...
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Transcript of Electromagnetic Spectrum. The electromagnetic spectrum covers a wide range of wavelengths and photon...
![Page 1: Electromagnetic Spectrum. The electromagnetic spectrum covers a wide range of wavelengths and photon energies.](https://reader030.fdocuments.in/reader030/viewer/2022032709/56649ed25503460f94be1589/html5/thumbnails/1.jpg)
Electromagnetic Spectrum
![Page 2: Electromagnetic Spectrum. The electromagnetic spectrum covers a wide range of wavelengths and photon energies.](https://reader030.fdocuments.in/reader030/viewer/2022032709/56649ed25503460f94be1589/html5/thumbnails/2.jpg)
The electromagnetic spectrum covers a wide
range of wavelengths and photon energies.
![Page 3: Electromagnetic Spectrum. The electromagnetic spectrum covers a wide range of wavelengths and photon energies.](https://reader030.fdocuments.in/reader030/viewer/2022032709/56649ed25503460f94be1589/html5/thumbnails/3.jpg)
Two types of wavesTransverse (no medium required)
andCompression (must have a medium)
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Wavelength:the distance between two identical points on two adjacent
waves
![Page 5: Electromagnetic Spectrum. The electromagnetic spectrum covers a wide range of wavelengths and photon energies.](https://reader030.fdocuments.in/reader030/viewer/2022032709/56649ed25503460f94be1589/html5/thumbnails/5.jpg)
Frequency is the number of wave crests that pass a point
during one second.
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These waves go from Large to smallRadio
MicrowavesInfrared
Visible LightUltraviolet
X-RaysGamma Radiation
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Electromagnetic waves are produced by the motion of electrically charged particles
Particle Wave Duality: Electomagnetic radiation acts as a wave but also as a particles (“Photons” which is a stream of particles that has no mass.)
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Visible Light
Why is the sky blue?
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Why is the sky blue?Rayleigh Scattering
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Rayleigh Scattering: light hits gas molecules and the different
frequencies are all effected differently.Higher frequencies (blue) are
absorbed much more often then lower frequencies (red)
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The gas will eventually radiate the blue light back out scattering it out
making the sky appear blue.
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Why do you get different colors at
sunset or when there are more clouds in the
sky?
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Ticket out the door1. What is the largest wavelength
we know about?2. Are light wave transverse or
compression waves?3. Why is the sky blue?