Practicing Success
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The time taken by light to travel normally through a glass plate of thickness 1 mm would be: (Take refractive index of glass = 1.5) |
0.1 × 10-13 s 12 × 10-5 s 5 × 10-12 s 1.5 × 10-5 s |
5 × 10-12 s |
$ V = \frac{c}{\mu} = \frac{3\times 10^8}{1.5} = 2\times 10^8$ $ t = \frac{d}{v} = \frac{10^{-3}}{2\times 10^8} = 5\times 10^{-12} s$ |
