A ray of light entering from water to air at an angle of incidence $52^{\circ}$ does not undergo refraction. Why ? Write a method that makes refraction possible here.
Explanation
When a ray of light enters from water to air at an angle of incidence greater than the critical angle, it is totally internally reflected back into the water. To make refraction possible, the angle of incidence must be increased beyond the critical angle, allowing the light to pass from water into air.
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