Question

A laser is mounted so that a beam of light is travelling horizontally 20 cm below the surface of a square tank, 50 cm on a side. The tank is filled with a transparent liquid with index of refraction n = 1.41. The light reflects off a mirror; the mirror surface is 30° from the horizontal (see figure available in the next question).

Answer 1

An unpolarized component with intensity IO and a polarized component with intensity IP make up a horizontally moving beam of light.

In the air, a light beam is moving horizontally to the right. Every triangular prism has a larger index of refraction than air. A ray of light is a segment of light that is moving in a single direction along a straight path. A beam of light is a collection of light rays that emanates from a single source. Both convergent and divergent, they are parallel. A parallel Light Beam is created when the rays from a distant point source move in the same direction alongside one another.

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