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thomate1
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Why light itself cannot travel faster than c = 300000 km/s ?
You are really asking why the speed of light is constant, because if the speed of light is constant, then it cannot travel faster than itself.thomate1 said:Why light itself cannot travel faster than c = 300000 km/s ?
thomate1 said:Why light itself cannot travel faster than c = 300000 km/s ?
Prisms and mirrors don't slow down light. Light always travels at c. It is just that when it encounters matter, it keeps getting absorbed and reemitted, so it takes longer to get through.sueanne said:Basicly hun, light is constant, that speed is as fast as it can get. but u can slow it down using prisims and mirrors.
The speed of light, denoted by the letter c, is a fundamental constant in physics that represents the maximum speed at which all matter and information in the universe can travel. It is approximately 300,000 kilometers per second (km/s) in a vacuum.
The speed of light is considered unsurpassable because it is a fundamental constant in the universe and no object with mass can travel faster than it. This is known as the theory of relativity, which was first proposed by Albert Einstein in 1905.
The speed of light was first measured in the 17th century by Danish astronomer Ole Rømer. He observed the moons of Jupiter and noticed that their orbits appeared to vary in time depending on the position of Earth in its orbit. By calculating the time it took for light to travel from Jupiter to Earth, Rømer was able to estimate the speed of light.
According to the theory of relativity, the speed of light is the maximum speed at which energy, matter, and information can travel in the universe. Therefore, it is not possible for any object with mass to exceed the speed of light. However, scientists have found ways to manipulate particles and achieve speeds that are a fraction of the speed of light.
The speed of light has many practical applications in our daily lives, including in communication technology such as fiber optic cables, satellite communication, and wireless internet. It also plays a crucial role in astronomy, allowing us to study distant objects and understand the origins of the universe. Additionally, the speed of light is used in medical imaging, such as MRI and PET scans.