Quiz4Solution

Quiz4Solution - A ray of light goes from point A in a...

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A ray of light goes from point A in a medium in which the speed of light is v 1 to point V in a medium in which the speed of light is v 2 . 1. What is the time required to go from A to B ? 2. Show that the time reaches its minimum when n 1 sin T 1 =n 2 sin T 2 (so that the actual path the light takes minimizes traveling time!) Solution A. The time requires is given by the distances divided by corresponding velocities 22 2 2 12 x hl h t vv ±± ± B. Consider arbitrary path. Then the time needed is given by () ( ) x zh l tz ²± ± Let us consider this as a function of deviation z
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Quiz4Solution - A ray of light goes from point A in a...

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