Acrylic has a refractive index of 1.49 for light with vacuum wavelength 600 nm. Therefore, light with this vacuum wavelength will propagate (travel) through acrylic with a speed of. O 1.49 x 10 m/s O 6.71 x 107 m/s 3.00x 108 m/s O 4.47 x 10 m/s. none of the above
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