Which statement correctly compares the speed of light? the speed of light through space is much greater than 3 x 108 m/s. the speed of light in glass is much greater than 3 x 108 m/s. the speed of light in glass is faster than the speed of light through space. the speed of light in glass is slower than the speed of light through space.

The speed of light in glass is slower than the speed of light through space.

Explanation:

The speed of light in space is the fastest speed that light can have, and its value is:

The speed of ligth in space is constant, and it does not depend on the reference system (first postulate of special relativity).

When light enters a medium, instead, it slows down, so the speed of light in a medium (such as glass) is slower than the speed of light through space. More specifically, the speed of light in a medium is given by:

where

c is the speed of light in space (vacuum)

n is the refractive index of the medium, which is always a number greater than 1 (the refractive index of glass, for example, is approximately 1.5). Since n is always greater than 1, the speed of light in a medium is always slower than the speed of light in space.

The correct answer is:

D. The speed of light in glass is slower than the speed of light through space.

The statement above correctly compares the speed of light.

i believe it is b. what was the cause of the big bang

hope this !

c because the news are a source of information of things that happen on the daily and shows evidence about that particular topic