The speed of light in the void between molecules in glass is
A)more than its speed in a vacuum.
B)the same as its speed in a vacuum.
C)less than its speed in a vacuum.

Question

Quizplus · Accepted Answer

The speed of light is constant in a vacuum and doesn't change as it enters a transparent medium such as glass. However, when light enters a medium, it interacts with the atoms and molecules in the material, which can slow it down. In the case of glass, the speed of light is slightly slower than its speed in a vacuum, but not significantly so. Therefore, the correct answer is B, the speed of light in the void between molecules in glass is the same as its speed in a vacuum.

The Speed of Light in the Void Between Molecules in Glass