the greater the change in the speed of light in different media the greater the angle of ____________. a…

Brief Explanations:

• Refraction: When light moves from one medium to another, its speed changes, and it bends. The more the speed changes, the greater the bending (angle of refraction).
• Reflection: Occurs when light bounces off a surface. Speed of light in the original medium doesn't change in a way relevant to this question.
• Interference: Involves the superposition of light waves. Not related to speed - change - induced angle in the context of moving between media.
• Dispersion: Is about the splitting of light into its component colors due to different refractive indices for different wavelengths. While related to refraction, the core concept here is the angle due to speed change in media (refraction).

Answer:

A. refraction