the ratio of the velocity of light in a vacuum to the velocity of light in a material is called the\nangle…
the ratio of the velocity of light in a vacuum to the velocity of light in a material is called the\nangle of reflection.\nangle of refraction.\nindex of reflection.\nindex of refraction.
Answer
Brief Explanations:
The index of refraction (also called refractive index) of a material is defined as the ratio of the speed of light in a vacuum to the speed of light in that material. Angle of reflection is related to the law of reflection when light hits a surface. Angle of refraction is related to the bending of light as it passes from one medium to another. There is no such thing as index of reflection in the context of light - velocity ratios.
Answer:
D. index of refraction.