A beam of light travels a distance of 60 cm in a transparent solid whose absolute…

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Geometric Optics · Geometric Optics

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=3.0×108 m s−1c = 3.0\times10^{8}\,\text{m s}^{-1}.) (a) 2.0 ns2.0\,\text{ns} (b) 4.5 ns4.5\,\text{ns} (c) 3.0 ns3.0\,\text{ns} (d) 1.33 ns1.33\,\text{ns}

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