which of the following occurs when light is reflected from a rough or unpolished surface?
436610
Do i get choices or should I just tell you everything about refraction?
200961
Umm I dont think this has anything to do with snell or refractions.\n\nLet me ask you this question: How come you can see a shadow on  the ground , but not in the air between the object and the ground?\n\nThe answer is that you can see shadows clearly on opaque surfaces like the ground or muddy waters, works resonably well on a translucent surface too. And does not work on a transparent surface like air or clear water.\n\nDo I hear you still asking WHY?\n\nA shadow is created when there is considerably lesser amount of light falling in a certain region. And you can notice a shadow when the amount of light reflected for a certain region of a surface is lesser. now a transparent surface does not reflect much light in the first place ( it lets it pass through, thats why the surface is transparent ). So you do not detect the disparity in the amount of light reflected back to your eyes, and u do not sense the shadow. now if there was an opaque surface behind the transparent surface, you will see a shadow on that.
266775
they work the same way one way mirrors work.  A one-way mirror has a reflective coating applied in a very thin, sparse layer -- so thin that it's called a half-silvered surface. The name half-silvered comes from the fact that the reflective molecules coat the glass so sparsely that only about half the molecules needed to make the glass an opaque mirror are applied. At the molecular level, there are reflective molecules speckled all over the glass in an even film but only half of the glass is covered. The half-silvered surface will reflect about half the light that strikes its surface, while letting the other half go straight through.
46689
Rayleigh scattering (named after Lord Rayleigh) is the scattering of light by particles much smaller than the wavelength of the light. It occurs when light travels in transparent solids and liquids, but is most prominently seen in gases. Rayleigh scattering of sunlight from particles in the atmosphere is one reason light from the sky is blue.
917168
The experimental fact verified by experiments with light rays and mirror show that the happenings follow certain laws: If the light ray hits normally it comes back by the same path. If obliquely then it comes back obliquely equally inclined to the normal at the point of incidence and in the same plane of normal and the incident ray. But if you do experiment in which you also measure the intensity of light incident and reflected, then you find that the intensity of reflected light is slightly less. This shows that some light is either absorbed or scattered following no specific laws. Now this is the experimental fact. Now explanations. Explanation depends upon what you assume light to be made up of. If photons, then you know what happens to the table tennis ball when it hits the table without spinning. Same thing should happen to photons. That is how Newton explained  the phenomenon considering light as consisting of particles. He called them corpuscles. But photon is not an ordinary particle in bulk. It is supposed to have dual nature. Its total energy is equal h multiplied by some frequency which is a wave characteristic. Ordinary particle can have all velocities ranging from zero to velocity of light. But photons move with only one  velocity. So in case of bulky table tennis balls we say that they follow these rules of reflection which can be derived from mechanics but lose their little kinetic energy to the table and as sound. In case of photons this is not possible. So we say that if a bunch of photons are incident on a polished surface, there exists a maximum probability of following the laws of reflection, but the probability of the photon getting absorbed or getting scattered in any other direction is vey low but not zero. Similar expalnation can be thought of following the hypothesis that light is electromagnetic wave then we have to take the example of the mechanical waves and see how em wave is differen from them.
263621
Reflection of flashlight in the retina.\n\nFurther details:
157062
Its all about reflection of light.
703738
a mirror reflects light and reflects what light reflects off of (like if the light is on, you can be seen in the mirror).  Your shirt also reflects light.  A red shirt absorbs all the colors of light except for red, which is reflected.
183575
(1)mirrors reflect light because it has a shiny and reflective metal behind it.\n(2)camera lenses
1151404
If the deflection surface has any diffraction or diffusion to it, the light may just be redirected imperfectly. 12kV? Jumpin Gigawatts!
233278
By the same effect that causes uncurtained windows of a house bathed in sunlight to look darker than the rest of the house. The light goes further inside, so a greater proportion of it is diffused and absorbed internally, and less is reflected back out. The water acts as a light pipe, which you can demonstrate by holding a sheet of thin paper with a wet spot up to the light. The ref. provides a fuller explanation.
774526
On a smooth surface, the angle of reflection will be the same as the angle of incidence.\n\nTherefore, the answer is (B) 40 degrees.
550478
Refrective index water should be the same throught, provided that all the other conditions are the same throughout -- such as temperature, presense of impurity, etc.\n\nIts not the refrective index of water alone that determines whether light will be reflected or not or at what angle the light should be projected to be reflected. When you are talking about the surface of the water, you are really talking about the interface between water and air. When you are talking about "under the water", light is not changing media.
287924
That's because light reflects in the mirror just as if it's coming from the same distance the real object is but behind the mirror.  You are nor looking an image that is at the mirror distance, but really at the real object distance.
1015801
Any cloth has a lot of strands sticking out form it which disperses light falling on it and thus the reflected light is diffused. Once wet, the surface is uniform since the strands stick together being bogged down by the water. This provides a uniform surface for the light.
171535
a translucent material reflects some of the light that hits it\n\nWhen light strikes a translucent material, it enters the body of the object, scatters and re-emerges from the surface\n\nIf an object is translucent, it will allow some of the light to come through, but most of the light is scattered
1170187
The absorbed photon may be re-emitted as either reflected or refracted light. If it is absorbed, its energy is converted into heat. In some materials, a high-energy photon will stimulate the emission of a lower-energy photon. This is called fluorescence.