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188. The following statements about refraction of light are false except:A. Refraction of light is the phenomenon of a sudden change in the direction of propagation of a light ray when crossing the separation surface between two different transparent mediaB. It represents the phenomenon of the (partial) return of the light ray to the medium from which it originated when it encounters a separation surface between two different optical media.C. It is a physical quantity that depends on the angle of incidence of a light ray on the surface of separation of two different optical mediaD. It is a physical quantity directly proportional to the refractive indexE. They are all fake

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