All Questions
4
questions
2
votes
2
answers
133
views
What is light’s behavior in a medium?
I’ve been reading questions and answers to this topic and have conducted a few experiments as well to try and understand what happens to light in a medium. Somethings just don’t seem to make sense to ...
- 4,711
52
votes
3
answers
21k
views
How does light speed up after coming out of a glass slab?
As I learned today in school, my teacher told me that when light enters a glass slab it slows down due to the change in density and it speeds up as it goes out of the glass slab. This causes a lateral ...
- 841
3
votes
1
answer
376
views
Where / what is the source of the force that causes refraction?
So we know that as light moves from, say, a glass block to air, it speeds up and refracts, but if there is to be acceleration then surely there must be a resultant force to cause it? So where does ...
- 31
7
votes
6
answers
19k
views
Does light loses its energy when it passes through denser medium?
I know it does not because it emerges out of denser medium at 300,000 KM per second, but according to $E=mc^2$ and given that speed of light decreases inside denser medium with refractive index ...
- 181