roberto was testing how light interacted with a material he had just developed. the initial speed of light…

roberto was testing how light interacted with a material he had just developed. the initial speed of light was 3.0×10⁸ m/s. the final speed of light after it changed direction was 1.7×10⁸ m/s. what type of interaction took place?
Answer
Brief Explanations:
When light changes direction and its speed also changes as it passes from one medium to another, it is refraction. In reflection, the speed of light remains the same. Here, the initial speed of light is $3.0\times 10^{8}$ m/s and the final speed is $1.7\times 10^{8}$ m/s, indicating a change in speed as it changed direction.
Answer:
Refraction