The light from a red laser pointer has wavelength 6.35 * 10-7 m in vacuum. When this light is sent into a transparent material with relative permeability 1.00, its wavelength decreases to 3.47 * 10-7 m. Find (a) the frequency of the light in vacuum, (b) the frequency of the light in the material, (c) the speed of the light in the material, and (d) the dielectric constant of the material.

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