Physics, 20.05.2021 20:20 twinklkeys

The wavelength of a light ray in air is 5.89 x 10^-7m. When the light ray enters a certain material, its wavelength suddenly becomes 4.4175 x 10^-7 m. What could this material be?

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The wavelength of a light ray in air is 5.89 x 10^-7m. When the light ray enters a certain material,...