0
Light travels at c which is 299,792,458 meters per second. In a transparent medium light is absorbed and re-emitted by the atoms or molecules. This causes a time delay and means the apparent speed seems less than c. While travelling between each atom/molecule light still travels at c.
The relationship between c and the speed of light in the medium is given by the simple relation v = c/n, where v = velocity, c speed of light and n is the refractive index.
For H2, hydrogen gas the refractive index is 1.000132, therefore the speed of light in hydrogen gas is 299,792,458/1.000132 = 299,752,891 m/s.
What else can I help you with?
How fast do gravitational waves travel through space?
Gravitational waves travel through space at the speed of light, which is about 186,282 miles per second.
How do sound waves travel compared to light waves?
Sound waves require a medium to travel through, such as air, water, or solids, and they propagate by causing particles in the medium to vibrate. Light waves, on the other hand, can travel through a vacuum and do not require a medium. They propagate as electromagnetic waves and can travel through empty space.
What is as fast as light?
Nothing can travel faster than light in a vacuum.
How fast do electromagnetic waves travel (miles per second) through space?
Electromagnetic waves travel at the speed of light in a vacuum, which is approximately 186,282 miles per second.
How fast can light waves travel in a second if it's moving through a vacuum?
Approximately 186000 miles/second or 300000 kilometers/second
How fast does light travel through copper?
Copper is opaque to light - light can not travel though it.
How fast does light travel through wind?
ans2. Light is an electromagnetic phenomena, and is unaffected by the motion of air.
How does light travel trough space?
Light goes incredibly fast through space, bouncing off objects.
How fast do gravitational waves travel through space?
Gravitational waves travel through space at the speed of light, which is about 186,282 miles per second.
Some fast do light rays travel?
Yes, they travel some fast!
How fast does light travel through space in miles per hour?
670 616 629 mph
How do sound waves travel compared to light waves?
Sound waves require a medium to travel through, such as air, water, or solids, and they propagate by causing particles in the medium to vibrate. Light waves, on the other hand, can travel through a vacuum and do not require a medium. They propagate as electromagnetic waves and can travel through empty space.
How fast does light travel per foot?
the speed of light
How fast does light really travel?
it can travel from 380nm [nanometres] to 740nm
What is darkness and how fast does it travel?
Darkness is the absence of light and will therefore travel at the speed of light (6x108m/s)
How fast do waves travel through space?
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).
Does light travel fast outer space?
yes
