Huygens's wave theory requires which of the following with regard to the relative speeds of light in glass and in air?
A)Speed in air is greater than in glass.
B)Speed in air is less than in glass.
C)Speed in air equals that in glass.
D)Speed in glass equals square root of that in air.

Question

Quizplus · Accepted Answer

Huygens's wave theory, which explains the wave nature of light, implies that light travels faster in less dense mediums (like air) and slower in denser mediums (like glass). This is consistent with the principle of refraction.

Huygens's Wave Theory Requires Which of the Following with Regard