Light is both. Do some research about "wave-particle duality" (for example, on Wikipedia), to learn more about this.
If you do an experiment with light that's set up to observe waves, then it acts like waves, and does wavy things. If you do an experiment with light that's set up to observe particles, then it acts like particles, and does particlish things. After doing both experiments, you scratch your head, and you wonder "What is light ? Is it waves or is it particles ?" The correct answer is "Yes." It's both. That's the "wave/particle duality" of electromagnetic radiation.
This is a tricky question as all particles can be defined by wave characteristics. In other words, particles and waves share all their characteristics as they are simply the same thing described by a different set of math. Briefly, particles have waves lengths, travel in group waves, possess energy that can be calculated by wave equations, and so on. In my mind a particle (i.e., sub-atomic particle) is simply a packet of waves. In other words both particles and waves have wave length, frequency, energy, periods, intensity, and probably some more that I've forgotten.
There is the "particle" theory, expressed in part by the word photon.Light travelling through water shows how light acts as particles. It doesn't displace the water, it goes around the water particles moving it's way through while losing energy as it travels. (friction from particles colliding, heat, etc.)
Propagation of sound waves refers to the way in which sound energy travels through a medium. Sound waves are longitudinal waves that propagate by causing particles in the medium to vibrate back and forth in the direction of the wave. As the particles vibrate, they transfer energy to neighboring particles, causing the sound wave to travel through the medium.
Sound is the propagation of acoustic energy through a medium such as air or water. Although the energy propagates as waves, like light or other electromagnetic energy, acoustic energy is ''mechanical'' energy. Unlike light, where the waves can also be interpreted as particles, sound waves propagate through the oscillation of particles in a medium. The individual particles of air or water don't actually move very far, they just oscillate in place carrying the sound wave further to the next particles ahead. This is why sound doesn't propagate in a vaccuum but light does; sound requires a medium of particles to propagate the acoustic energy while light sort of propagates itself. Although the individual particles propagating the sound wave have mass and momentum while they're in motion, the wave itself has no momentum. So sound waves don't have a dual nature. However, you can transfer energy with sound--and do work--because the individual particles have energy and momentum as they oscillate. Air molecules inside your ear set into motion by the energy of an acoustic wave hit your eardrum and transfer their momentum to it which cause it to vibrate, which lets you hear the sound. Acoustic energy has even been used to levitate small objects against gravity--but you need a very loud sound to do that. You can find out more about this by searching the web for "acoustic levitation".
If you set up an experiment with equipment that detects and measures wave properties and then run light through it, light behaves like waves. If you set up an experiment with equipment that detects and measures particle properties and then run light through it, light behaves like particles. Light exhibits the propertiers of both waves and particles.
It's typically called the "Wave-particle duality". And it's easily demonstrated, so it's not "just a theory". If you set up an experiment that will produce results from a wave but not from a stream of particles, a beam of light produces results. So light behaves like a wave. If you set up an experiment that will produce results from a stream of particles but not from a wave, a beam of light produces results. So light behaves like a stream of particles. Whichever one you look for ... waves or particles ... light behaves that way. So, next time someone asks you "Is light a wave or a stream of particles ?", you can answer him confidently, knowing that your answer is the correct one. The correct answer is "Yes ".
If you do an experiment with light that's set up to observe waves, then it acts like waves, and does wavy things. If you do an experiment with light that's set up to observe particles, then it acts like particles, and does particlish things. After doing both experiments, you scratch your head, and you wonder "What is light ? Is it waves or is it particles ?" The correct answer is "Yes." It's both. That's the "wave/particle duality" of electromagnetic radiation.
This is a tricky question as all particles can be defined by wave characteristics. In other words, particles and waves share all their characteristics as they are simply the same thing described by a different set of math. Briefly, particles have waves lengths, travel in group waves, possess energy that can be calculated by wave equations, and so on. In my mind a particle (i.e., sub-atomic particle) is simply a packet of waves. In other words both particles and waves have wave length, frequency, energy, periods, intensity, and probably some more that I've forgotten.
There is no set size for a light-wave. Ultraviolet waves are the smallest and get larger as the color warms up.
There is the "particle" theory, expressed in part by the word photon.Light travelling through water shows how light acts as particles. It doesn't displace the water, it goes around the water particles moving it's way through while losing energy as it travels. (friction from particles colliding, heat, etc.)
Propagation of sound waves refers to the way in which sound energy travels through a medium. Sound waves are longitudinal waves that propagate by causing particles in the medium to vibrate back and forth in the direction of the wave. As the particles vibrate, they transfer energy to neighboring particles, causing the sound wave to travel through the medium.
There is no set size for a light-wave. Ultraviolet waves are the smallest and get larger as the color warms up.
Thomson set out to prove that the cathode rays produced from the cathode were actually a stream of negatively charged particles called electrons.
A collective noun for waves is a series of waves.
a)set of sine waves b)set of sine waves with phase zero
Stream Scheduling is a scheduling system where there is a steady stream/flow of patients at set appointments throughout the day.