Let us think about the propagation of energy from one point to the other. This propagation could be done only in two ways. One by the movement of the particles. For example in case of electrical energy transfered from the source to the bulb via a wire is due to the electrons flowing from the source to the filament of the bulb.
But in case of dropping a stone and producing the disturbance to get propagated we rely on the waves. In case of wave propagation no particle are carried along with the wave propagation. The particles only excecute simple harmonic vibration, but the energy is transfered from one particle to the other. So only two options.
Hence light being an energy could be propagated one by waves or the other by photons.
There are evidences that light is made up of particles called photons and even of waves. Light plays a dual nature. Some phenomenon like reflection and refraction can be explained on the basis of particles called photons while phenomenon like diffraction and polarization can be explained on the basis of wave theory of light. So, we can say that light is made up of particles as well as waves.
The statement "light possesses two properties: photons and waves" is not true because photons are not a property of light: they're the way light is emitted and absorbed. The correct statement is "light possesses two properties: particles and waves." Other properties of light include intensity, propagation direction, frequency, polarization. More information: Wave/Particle duality of light is one of the longest running paradoxes in Physics. It's wave characteristics, as described by Schrodinger function, are well proven. It's particle characteristics are also well evidenced though only directly at short ranges and lifetimes. The original assumption that all light comes in Photon particles with mass came from gravitational lensing,- light bent by large objects. We now better understand about curved space time curving everything, massive or not, but light is still described as wave bundle /corpuscles. The Photon is not a 'property', the two characteristics current physics uses are are 'waves' and 'particles'. 'Light' is simply a limited section of the energy wave spectrum that happens to be 'visible' to many creatures living on planet earth.
Light "waves" are able to travel through a vacuum because light is only halfway "wavy". Light is actually a collection of particles, known as photons. Photons, because they are particles, are able to travel through a vacuum; unlike waves, they don't need a medium to travel from place to place. If you're interested in what I mean by "halfway wavy" look up the quantum particle-wave duality nature of light on Wikipedia.
When the intensity of light changes, the number of photons in the beam increases. Keep in mind the beam has larger photon population, but the energy of individual photon is unchanged. The photons only increased in number.
Light waves that oscillate only in a single plane are considered polarized. Unpolarized light waves have oscillations occurring in various planes.
Light travels in the form of waves or particles called photons. It stops only when absorbed by matter.
There are evidences that light is made up of particles called photons and even of waves. Light plays a dual nature. Some phenomenon like reflection and refraction can be explained on the basis of particles called photons while phenomenon like diffraction and polarization can be explained on the basis of wave theory of light. So, we can say that light is made up of particles as well as waves.
The statement "light possesses two properties: photons and waves" is not true because photons are not a property of light: they're the way light is emitted and absorbed. The correct statement is "light possesses two properties: particles and waves." Other properties of light include intensity, propagation direction, frequency, polarization. More information: Wave/Particle duality of light is one of the longest running paradoxes in Physics. It's wave characteristics, as described by Schrodinger function, are well proven. It's particle characteristics are also well evidenced though only directly at short ranges and lifetimes. The original assumption that all light comes in Photon particles with mass came from gravitational lensing,- light bent by large objects. We now better understand about curved space time curving everything, massive or not, but light is still described as wave bundle /corpuscles. The Photon is not a 'property', the two characteristics current physics uses are are 'waves' and 'particles'. 'Light' is simply a limited section of the energy wave spectrum that happens to be 'visible' to many creatures living on planet earth.
Light waves transfer energy and information. Energy is transported through the oscillation of electric and magnetic fields in the form of photons, while information is carried through characteristics such as wavelength, frequency, and direction.
Light "waves" are able to travel through a vacuum because light is only halfway "wavy". Light is actually a collection of particles, known as photons. Photons, because they are particles, are able to travel through a vacuum; unlike waves, they don't need a medium to travel from place to place. If you're interested in what I mean by "halfway wavy" look up the quantum particle-wave duality nature of light on Wikipedia.
When the intensity of light changes, the number of photons in the beam increases. Keep in mind the beam has larger photon population, but the energy of individual photon is unchanged. The photons only increased in number.
Einstein theorized that light could be described not only as waves but also as fundamental particles called photons. It is also the elementary particle for all electromagnetic waves.
You don't. The only objects that can travel at the speed of light are those that ONLY travel at that speed, like photons or gravitons.
horizontal waves only
Silicon is opaque to all light (IR through UV).The bandgap of silicon is not high enough to produce visible photons, only IR photons.
Light waves that oscillate only in a single plane are considered polarized. Unpolarized light waves have oscillations occurring in various planes.
there are three types of light waves i.e infrared light, visible light and ultra violet light. Out of these, only visible light rays (waves) gets reflected by the mirror but the other two light waves passes through the mirror.