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48. Green light has a wavelength of roughly 500 nm. What is the frequency of green light? 49. A radio wave has a wavelength of 1 centimeter. What is
48. Green light has a wavelength of roughly 500 nm. What is the frequency of green light? 49. A radio wave has a wavelength of 1 centimeter. What is the frequency of this wave? 50. If NASA were to propose a new X-ray observatory here in Kentucky, should our Senators support it on scientific grounds? Why or why not?