Index of refraction: When light goes from one material into another material having a HIGHER index of refraction,

Question

Quizplus · Accepted Answer

When light goes from one material into another material having a higher index of refraction, its speed decreases due to the slower propagation in the denser material. The wavelength also decreases because the frequency of the light cannot change, and since the speed of light is decreasing, the wavelength must also decrease in order to keep the frequency constant. However, the frequency of the light remains the same. Therefore, option B is the best choice.

Index of Refraction: When Light Goes from One Material into Another