in compton scattering it is necessary that the energy of the photon should be very much greater than binding energy of electron .. binding energy is equal to work function of metal . in most of metals , the threshold frequency is equal to that of ultravoilet light .that is why we do not observe comption effect with visible light.
Photons propagating at frequencies in the visible light spectrum can knock out electrons from atoms, known as the photoelectric effect, if their energy is greater than the photoelectric work function for that atom. However, at the energies associated with the visible light frequencies, these new photoelectrons will absorb any excess energy of the initial photons and convert it to kinetic energy, meaning that the initial photons vanish. Obviously, if the photons are gone, they can't scatter. Increasing the intensity (brightening) of the photons will cause more electrons to be emitted, but it will not increase their energy since photon energy is a function of its frequency, not quantity.Photons that retain energy after interacting with an electron via the photoelectric effect are said to undergo Compton scattering. Now, despite what everyone says, if a photon has any amount of energy greater than the applicable photoelectric work function, it can theoretically undergo Compton scattering. Yes, I'm implying that visible light can Compton scatter. However, the probability of Compton scattering at these energies is very low, not to mention these scattered photons would most likely loose all of their energy from all of the other various available atomic interactions before they could even escape the sample, which is a necessary component to measurement (something has to exist in order to be measured). Therefore, the effects of Compton scattering are negligible at visible light energies. In fact, they don't really start becoming noticeable until around energies of 100keV, which is around 105 times greater than the energies associated with visible light. These kinds of energies are associated with x-rays.
Visible light heats the earth and the earth emits infrared energy which is absorbed by green house gases that trap the heat.
It is called the Tyndall effect.
A solar eclipse happens when the Moon blocks the light from the Sun, thus always observed at day. By contract, a lunar eclipse is the earth shading the light from the Sun on the Moon, and is therefore observable only at night when the Moon is visible.
Soap solution. Soap molecules in solution aggregate into structures large enough to affect visible light; sugar molecules do not, and individual sugar molecules are too small to have much of an effect on visible light.
photo electric effect,compton's effect
photo electric effect,compton's effect
yes it supports the wave theory of light...
it have more energy than visible light
Particle theory of light can explain Photoelectric Effect,Compton effect,Pair production.... wave theory of light can explain interference,refraction...
Photons propagating at frequencies in the visible light spectrum can knock out electrons from atoms, known as the photoelectric effect, if their energy is greater than the photoelectric work function for that atom. However, at the energies associated with the visible light frequencies, these new photoelectrons will absorb any excess energy of the initial photons and convert it to kinetic energy, meaning that the initial photons vanish. Obviously, if the photons are gone, they can't scatter. Increasing the intensity (brightening) of the photons will cause more electrons to be emitted, but it will not increase their energy since photon energy is a function of its frequency, not quantity.Photons that retain energy after interacting with an electron via the photoelectric effect are said to undergo Compton scattering. Now, despite what everyone says, if a photon has any amount of energy greater than the applicable photoelectric work function, it can theoretically undergo Compton scattering. Yes, I'm implying that visible light can Compton scatter. However, the probability of Compton scattering at these energies is very low, not to mention these scattered photons would most likely loose all of their energy from all of the other various available atomic interactions before they could even escape the sample, which is a necessary component to measurement (something has to exist in order to be measured). Therefore, the effects of Compton scattering are negligible at visible light energies. In fact, they don't really start becoming noticeable until around energies of 100keV, which is around 105 times greater than the energies associated with visible light. These kinds of energies are associated with x-rays.
Maria Juranyi has written: 'Studies of the compton effect from the viewpoint of the ballistic theory of light'
Most to all of the milky way is visible through sattelite telescopes as well as other galaxies, but only our local spiral arm is visible from here.
The visible beam of headlights in fog is caused by the Tyndall effect . The water droplets scatter the light, making the headlight beams visible.
Light has both wave and particle properties. In some cases, the wave property is observable (Young's double slit experiment) and in other cases, the particle property is observable (photoelectric effect).
Tyndall effect
Visible light heats the earth and the earth emits infrared energy which is absorbed by green house gases that trap the heat.