A small underwater pool light is 1.26 m below the surface of a swimming pool.What is the radius of the circle of light on the surface,from which light emerges from the water? (n_water = 1.333). A) 0.77 m B) 0.57 m C) 1.13 m D) 1.43 m

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Quizplus · Accepted Answer

The critical angle for total internal reflection can be calculated using Snell's Law. The critical angle is given by θc = sin⁻¹(1/n_water). The radius of the circle of light is then found using the formula r = h * tan(θc), where h is the depth of the light. Calculating this gives approximately 1.43 m.

A Small Underwater Pool Light Is 1