Electromagnetic Radiation

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Electromagnetic Radiation

• Wavelength (l)
• Frequency (f)
• Speed (c) l f 3 x 105 km/s

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Electromagnetic Spectrum
Wavelength (m)
Visible light
Frequency (Hz)
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Limitations of our eyes

• Limited sensitivity
• Limited resolution

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Limitations of our eyes

• Limited sensitivity
• Limited resolution
• Limited bandwidth

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Observing at Other Wavelengths
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Reflecting Telescopes
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