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.
Gravitational waves travel through space at the speed of light, which is about 186,282 miles per second.
Yes, they travel some fast!
670 616 629 mph
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.
the speed of light
it can travel from 380nm [nanometres] to 740nm
Optical fiber carries signals through light, and therefore at light speed, the fastest possible, and gets less hot. Copper wire transmits information using electricity, which although fast, is not nearly as fast as light. Fiber optics allows faster transmission of data.
Darkness is the absence of light and will therefore travel at the speed of light (6x108m/s)
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).
yes