Question 13 1 pts The refractive index of water is approximately 1.3 and the refractive index of titanium dioxide is approximately 2.6. In which material does light travel slower and how much slower does it travel compared to the speed in the other material? light will travel slower in titanium dioxide by a factor of 1/2 comparecj to water light will travel slower in water by a factor of 1/2 compared to titanium dioxide light travels the same speed in both there is insufficient information given to answer the