What are the features of light?
Termín „světlo“ lze použít k označení viditelného světla, což je elektromagnetické záření vlnové délky, které mohou lidské oči vnímat, nebo obecněji na elektromagnetické záření jakékoli vlnové délky. There are many different light properties that are shared by all electromagnetic radiation, including its speed in the vacuum, the ability to reflect and in most situations. Different light properties can be reported by different waves of light. Such variable light properties include wavelength, frequency, intensity and polarization. Quantum mechanical properties of light are particularly interesting about physics and chemistry and are based on the fact that light acts like a wave and as a particle.
different different features of light can be used to describe and classify any given waves of electromagnetic radiation. The wavelength of the light describes the distance between the two vertices in the wave or the distance between repeated súseky in the wave. Frequency describes the number of repetitions that occur in the given timein a period of time. Other light properties such as intensity and polarization can also be used to classify specific light waves.
The light passes at a vacuum at 186 282 miles per second (about 299,792,458 meters per second). This speed is known as the "speed of light" and is very important in physics for various reasons, including its place in Einstein's theory of special relativity. Theory states that "Vacuum speed in vacuum is the same for all observers regardless of their movement or movement of a light source." Thus, the light emitted from the light source moving at almost the speed of light travels at the same speed as the speed radiated from the immobile source of light. Special relativity leads to phenomena, such as time dilation, contraction of length and the idea that maximum speed is necessarily final.
quantum mechanical properties of light are mostly related to the duality of wave particlesof light behaves at different times, such as wool and as a particle. Experiments have shown wave properties of light, such as interference, polarization and diffraction. However, the experiment demonstrating the "photoelectric effect" has shown that light also shows the properties of similar particles that could not prove something completely waves. The basic "particles" of light is known as "photon", which is defined as the only quantum of light or the smallest physical "amount" of light that can exist in one unit.