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?

Question

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?

shamim · Answer

Light velocity is the highest in vaccum or in air medium

shamim · Answer

Light velocity will b lower in any other denser medium

shamim · Answer

So in ur problem light is refracted from   
Air to any other denser medium

shamim · Answer

Welcome to open study !!!