Answer: exotic medium can be engineered to slow light
Explanation:
The name given to the groupings on the periodic table that are made up of elements that have similar chemical reactive tendencies or reactivities are 1. Groups/Families.
Answer: Frequency and Energy
Explanation:
Show a chart of the wavelength, frequency, and energy regimes of the spectrum. Astronomy Across the Electromagnetic Spectrum. While all light across the electromagnetic spectrum is fundamentally the same thing, the way that astronomers observe light depends on the portion of the spectrum they wish to study. For example, different detectors are sensitive to different wavelengths of light.
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