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The horizontal axis represents theta sub I, ranges from 0 to 90 in increments of 10. The vertical axis represents reflectivity R sub parallel and transmissivity T sub parallel, ranges from 0 to 1 in increments of 0.1. The graph shows 2 curves for T parallel and R parallel.

The curve for R parallel behaves as an increasing concave up curve that passes through (0, 0.05), (57, 0), and (90, 1). The curve for T parallel behaves as a decreasing concave down curve that passes through (0, 0.95), (5, 1), and (90, 0). A wave incident from Air to glass medium with angle theta sub I, the wave partially reflected in the same medium and transmitted in the other medium with eta equals 1.5. All values are estimated.