ch3-4 review - Ben Milkovich Astronomy 205 Radiation 2...

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Ben Milkovich Astronomy 205 Feb 19 2008 Radiation 2) Define each of these Period – this is the time it takes for an entire wave to pass by an area. An entire wave consists of one trough and one crest, usually measured from trough to trough, or crest to crest. wavelength – this is the length from crest to crest, or trough to trough. wave frequency – is the number of crests or troughs in one second, measured in Hz. wave velocity – this is the speed and direction the wave is traveling in. 3) What is the relationship between wavelength wave frequency, and wave velocity? The relationship between wavelength, frequency, and velocity is the equation fv λ , where lambda is wavelength, f is frequency, and v is velocity. 4) What is diffraction, and how does it relate to the behavior of light as a wave? Diffraction is the ability of waves to bend. 11) What do radio waves, infra red, visible, ultra violet, X-rays, and gamma rays all have in common? How do they differ?
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