A light ray initially traveling in glycerin (n = 1.473) strikes an interface with diamond (n = 2.42) at an angle of 60.0 with respect to the normal. Which statement is true? Group of answer choices The speed of the light ray remains the same as it enters diamond. The light ray continues moving along the same path as it enters diamond. The light ray is completely reflected at the interface. The speed of the light ray increases as it enters diamond. The speed of the light ray decreases as it enters diamond