Light travels in waves of frequency and as particles of matter. There are many types of light, of which the visible spectrum is a small part.Know More
Visible light is the light that can be seen with the naked eye. It is one type of electromagnetic radiation, which results from the vibrations of electric and magnetic fields. Other types of light that exist in the electromagnetic spectrum include
Television, radio and microwaves also exist on the EM spectrum. These waves have some of the lowest energy levels on the spectrum while gamma rays have some of the highest. The wavelengths of these rays are not captured by the human eye and are thus considered invisible. The visual range of the EM spectrum appear in different colors.
Another way that light is said to travel is as particles, or packets of energy. These packets are called photons, which are elementary particles that carry EM force. The concept of photons was developed by Albert Einstein to describe the actions of light that did not follow the convention of waves.
Light moves very rapidly, but does have a maximum velocity of 186,282 miles per second. In astronomy, a light year equals 5.8 trillion miles, which is the distance light can travel at its maximum speed for the span of a year.Learn more about Physics
Light travels faster than sound because sound waves can only travel as waves of pressure in a medium, whereas electromagnetic waves, of which light is made, move on their own even through vacuum. Light's speed decreases a little when it goes through various mediums, as electromagnetic waves interact with the medium at a subatomic level. Sound's speed depends on the medium through which it travels.Full Answer >
Light travels through a vacuum at 186,282 miles per second; through the Earth's atmosphere, it moves at 186,227 miles per second. The speed of light, in general, is affected by the medium through which it moves.Full Answer >
Light travels through a vacuum. Light travels at its greatest possible speed when moving through a vacuum. This is because there are no particles with which it can interact, which lengthens the distance light has to travel as it is absorbed and re-emitted by the particles.Full Answer >
Light waves travel through the process of electromagnetic radiation. The combination of electrical and magnetic fields that light has is what gives light the distinct quality of being able to travel with or without a medium, which is unlike other wave forms.Full Answer >