Physics

Problem

A beam of light travels a distance of 60 cm in a transparent solid whose absolute refractive index is 1.50. How much time does the light take to cover this distance? (Take

c = 3.0\times10^{8}\,\text{m s}^{-1}

.) a)

2.0\,\text{ns}

4.5\,\text{ns}

3.0\,\text{ns}

1.33\,\text{ns}

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