Question

will light travel through a glass slab with the same velocity as it travels in air?

Answer 1

Hey mate,
Here's your answer
Its no as it vary with the medium.
Hope it helps you!! :-)

Answer 2

Heya !!

Here is your answer :-

The speed of the light varies with the medium it travels. In denser medium the velocity slows down while at the rarer medium it's velocity increases.

So,the velocity of light will be different in air and glass.