Speed is how fast something moves. Light is a form of energy carried by massless photons, these photons move at the speed of light, which is the fastest speed that anything in the universe can travel.
there is none.
The speed of light is much faster than the speed of sound. Light travels at approximately 186,282 miles per second in a vacuum, while sound travels at about 1,125 feet per second in air.
They don't really travel at the same speed, but, on television, the distance they travel is so short, that the difference between the speed of sound and the speed of light is almost non-existant.
Light rail is for street cars and trolleys. Rapid rail is for high speed trains and subways.
The light will bend away from the normal as it enters the material where its speed is higher. This bending of light is known as refraction. The amount of bending depends on the difference in the speed of light between the two materials.
The time difference is due to the differences in the speed of light and sound. Light travels near 300,000,000 meters/second where sound travels 343 meters/second. Light travels almost one million times faster than sound therefore it reaches you first.
The speed of light is slower in water than in air. In a vacuum, light travels at about 186,282 miles per second, but in water it slows down to about 140,000 miles per second.
LDO means light disel oil HSD means high speed disel
speed of light
Light bends when it enters glass due to a change in speed caused by the difference in refractive index between air and glass. This change in speed causes the light to change direction, a phenomenon known as refraction.
In reflection, the light waves travel within the same media and maintains the same speed but in refraction light waves travel through a different media and so their speed changes.
The difference is their wavelengths.