For this to work you would need a cuboid shaped block of jello, with as flat a surface as possible and no impurities within it.
Using a light source with a very narrow beam, (Ray box or preferably a Laser pointer, i suppose you would need one of a color that would show up in the jello) shine it at an angle from the normal (a line perpendicular to the plane the light is shining on) and measuring the angle of the incident beam (i) and then the angle of the beam as it has been refracted within it (r).
Then calculate: sin i/sin r this will give you the refractive index.
The speed of light within Jello= (1/refractive index of jello)x c (speed of light)
What a wonderful age we live in ! I actually found the refractive index of jello
with a quick on-line search. The reference I went to said it's 1.38 .
Of course, the properties of the jello are going to change somewhat depending
on the moisture content, i.e. whether you mix it stiff or sloppy, and then how
long you leave it in the fridge. It may even depend on the flavor, I don't know.
But whatever the refractive index of your substance is, that's the ratio of the
speed of light in vacuum to the speed of light in that substance.
So let's say that the refractive index of your jello, today, is actually 1.38 .
Then the speed of light through it is
299,792,458 meters per second / 1.38 =
217,240,911.6 meters per secondDo you realize what we have here ? ! ? What a beautiful science-fair project . . . . .
figure out a way to mold jello in the shape you want, and smooth enough, and
make big jello optical lenses ! A jello magnifying glass. A jello telescope.
A jello graphic camera !
The human cornea is probably about the same as jello.
The speed of light in the cornea ≈ 226 000 km/s
Copper is opaque to light - light can not travel though it.
ans2. Light is an electromagnetic phenomena, and is unaffected by the motion of air.
Light goes incredibly fast through space, bouncing off objects.
Yes, they travel some fast!
670 616 629 mph
refractive index is the measure of how how fast or slow light travel through a material reference to the speed of light in empty space.
the speed of light
3.00 x 108/ 1.49 = 2.0134 x 108 m/s Therefore light will travel through acrylic at 2.01 x 108 m/s.
They all travel through a vacuum at the same speed - The speed of light.
it can travel from 380nm [nanometres] to 740nm
all electromagnetic waves travel at the same speed through space. This is the speed of light, or 300 000 000 m/s (3x108 m/s).
Darkness is the absence of light and will therefore travel at the speed of light (6x108m/s)