scattering of light explain it.
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Scattering of light
Light can be examined entirely from its source. For example, the natural source of light which comes from the moon is objected from the reflection of light emitted by the sun which is due to the scattering of sunlight. When light passes from one medium to any other medium say air, glass or water then a part of the light is absorbed by particles of the medium preceded by its subsequent radiation in a particular direction. This phenomenon is termed as Scattering of light. The intensity of scattered light depends on the size of the particles and wavelength of the light.
Shorter wavelength and high frequency scatter more due to the waviness of the line and its intersection with a particle. The more wavy the line, more are the chances of it intersecting with a particle. On the other hand, longer wavelength have low frequency and they are straighter and chances of colliding with the particle is less so the chances are less.
The bending of multicolored light can be seen in the afternoon due to the refraction and total internal reflection of light. The wavelength of the sunlight forms different colors at different direction. Rayleigh scattering theory is reasoned for the red color of the sun in the morning and blue color of the sky.
Let p be considered as the probability of scattering and λ is the wavelength of radiation, then it is given as:
P⋉1λ4
The probability for scattering will give a high rise for shorter wavelength and it is inversely proportional to the fourth power of the wavelength of radiation.
Why is color of clear sky blue? And why are the clouds white?
Molecules with larger size than the wavelength of light, experience the scattering effect differently, the phenomenon is known as Mie effect. Due to the largeness of particles, the light appears white. That is why the clouds, which are made of droplets of water are white. Blue color is present in major percentage among the lower wavelengths. With the wavelength of the light, the scattering efficiency of the small molecules in the atmosphere decreases. Sun radiates its light and its rays fall into the earth’s envelope thus, sunlight gets scattered in the atmosphere.
There are some examples which also show scattering, particles like dust and smoke can also scatter radiation. In the same manner, we can explain the red color appearance of the sun. For red light, the wavelength is more, and it is easy to go through the atmosphere as the scattering is less for the red light. When the light is on any other object, it gets scattered depending on its properties as different light has different intensity and each particle has different characteristics
Scattering of light
Light can be examined entirely from its source. For example, the natural source of light which comes from the moon is objected from the reflection of light emitted by the sun which is due to the scattering of sunlight. When light passes from one medium to any other medium say air, glass or water then a part of the light is absorbed by particles of the medium preceded by its subsequent radiation in a particular direction. This phenomenon is termed as Scattering of light. The intensity of scattered light depends on the size of the particles and wavelength of the light.
Shorter wavelength and high frequency scatter more due to the waviness of the line and its intersection with a particle. The more wavy the line, more are the chances of it intersecting with a particle. On the other hand, longer wavelength have low frequency and they are straighter and chances of colliding with the particle is less so the chances are less.
The bending of multicolored light can be seen in the afternoon due to the refraction and total internal reflection of light. The wavelength of the sunlight forms different colors at different direction. Rayleigh scattering theory is reasoned for the red color of the sun in the morning and blue color of the sky.
Let p be considered as the probability of scattering and λ is the wavelength of radiation, then it is given as:
P⋉1λ4
The probability for scattering will give a high rise for shorter wavelength and it is inversely proportional to the fourth power of the wavelength of radiation.
Why is color of clear sky blue? And why are the clouds white?
Molecules with larger size than the wavelength of light, experience the scattering effect differently, the phenomenon is known as Mie effect. Due to the largeness of particles, the light appears white. That is why the clouds, which are made of droplets of water are white. Blue color is present in major percentage among the lower wavelengths. With the wavelength of the light, the scattering efficiency of the small molecules in the atmosphere decreases. Sun radiates its light and its rays fall into the earth’s envelope thus, sunlight gets scattered in the atmosphere.
There are some examples which also show scattering, particles like dust and smoke can also scatter radiation. In the same manner, we can explain the red color appearance of the sun. For red light, the wavelength is more, and it is easy to go through the atmosphere as the scattering is less for the red light. When the light is on any other object, it gets scattered depending on its properties as different light has different intensity and each particle has different characteristics
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Scattering is a general physical process where some forms of radiation, such as light, sound, or moving particles, are forced to deviate from a straight trajectory by one or more paths due to localized non-uniformities in the medium through which they pass. In conventional use, this also includes deviation of reflected radiation from the angle predicted by the law of reflection. Reflections that undergo scattering are often called diffuse reflections and unscattered reflections are called specular (mirror-like) reflections.
Scattering may also refer to particle-particle collisions between molecules, atoms, electrons, photons and other particles. Examples include: cosmic ray scattering in the Earth's upper atmosphere; particle collisions inside particle accelerators; electron scattering by gas atoms in fluorescent lamps; and neutron scatteringinside nuclear reactors.
The types of non-uniformities which can cause scattering, sometimes known as scatterers or scattering centers, are too numerous to list, but a small sample includes particles, bubbles, droplets, densityfluctuations in fluids, crystallites in polycrystalline solids, defects in monocrystalline solids, surface roughness, cells in organisms, and textile fibers in clothing. The effects of such features on the path of almost any type of propagating wave or moving particle can be described in the framework of scattering theory.
Some areas where scattering and scattering theory are significant include radar sensing, medical ultrasound, semiconductor waferinspection, polymerization process monitoring, acoustic tiling, free-space communications and computer-generated imagery. Particle-particle scattering theory is important in areas such as particle physics, atomic, molecular, and optical physics, nuclear physics and astrophysics.
Scattering may also refer to particle-particle collisions between molecules, atoms, electrons, photons and other particles. Examples include: cosmic ray scattering in the Earth's upper atmosphere; particle collisions inside particle accelerators; electron scattering by gas atoms in fluorescent lamps; and neutron scatteringinside nuclear reactors.
The types of non-uniformities which can cause scattering, sometimes known as scatterers or scattering centers, are too numerous to list, but a small sample includes particles, bubbles, droplets, densityfluctuations in fluids, crystallites in polycrystalline solids, defects in monocrystalline solids, surface roughness, cells in organisms, and textile fibers in clothing. The effects of such features on the path of almost any type of propagating wave or moving particle can be described in the framework of scattering theory.
Some areas where scattering and scattering theory are significant include radar sensing, medical ultrasound, semiconductor waferinspection, polymerization process monitoring, acoustic tiling, free-space communications and computer-generated imagery. Particle-particle scattering theory is important in areas such as particle physics, atomic, molecular, and optical physics, nuclear physics and astrophysics.
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