Hey stupid

Some random guy not worth researching

@Ivan Pavlovich more like 299,000,000m/s

299 792 458 meters per second

who got that number in space

https://www.nature.com/articles/17561

Light is a wave and waves have a period and wavelengtho therefor it has a speed

who went to space and got that number

Light can also slow to 17 m/s

sheeple after it leaves the cold medium does the light speed back up ?

Yes the wave speed varies depending on factors

@jeremy In the case of quantum tunelling.... light can travel infinitely fast

Light int the void, in another environment the refractive index change but v = c/n so the light speed change

Yes depending in conditions

how does it speed back up after doesnt that violate some rule of physics or something

No

@jeremy how many physics courses have you taken

whats speeding the light back up after it leaves the cold medium

0

Have you read up on Newton's laws?

I dont feel like discussing waves sorry everyone im dipping

Okay well that would explain it

Nothing speeds it back up.

I can see that we're dealing with a professional here, watch out everyone /s

https://tse4.mm.bing.net/th?id=OIP.5lZpN8XwJ7gszUW5QYTZ0QAAAA&pid=Api

Nothing will speed up unless acted upon by an outside force

light enters a cold medium slows down to 17km per hour it leaves the cold medium goes back to whatever 300km per second

17 km/hr

U sure

17 meters a second

That's not the same as 17 km/hr

Please be consistent

That's not the right notation then

Ok, so light travels more slowly in a medium because the photons hit particles. They are then absorbed by those particles and released on the other side. They then hit new particles, and are absorbed and released again, and so on.

light enters a cold medium slows down to 17m per second then it leaves the cold medium and speeds back up to 300km per second. what speeds the light back up

That's where the delay comes from.

61.2km/h

Between the particles, light still moves at full speed.

so the light is moving full speed but way slower sounds legit

@Ivan Pavlovich In the case of quantum tunelling, light moves FASTER than full speed and literally forgets there is air and just JUMPS from one prism to another

Light is not a usual particle like the proton or the electron, it's not a fermion