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If the speed of light was the same in all materials would a lens cause light rays to bend?
No. Without refraction at a boundary between media with different refractive indices, lenses wouldn't work. The only way we would have of forming real images would be with curved mirrors.
Why is clear glass is an example of an transparent material?
Whenever light, while traveling through a medium such as air, encounters a substance with a different index of refraction, some light will pass and some will reflect off the surface. The angle, and the difference in the two indexes will determine the reflective properties of the glass. Specifically, light is composed of alternating electromagnetic waves. When you solve Maxwell's equations for these waves encountering a surface, reflection is discovered.
What happens to light waves when two materials do not have similar indexes of refraction?
Nothing happens to light waves at all. UNLESS the two materials happen to be right next to each other AND the light tries to cross FROM one INTO the other one. Then things get very interesting.
What is the angle of refraction when the angle of incidence is equal to the critical angle?
Quick Answer:The angle of incidence is not equal to the angle of refraction.The angle of incidence is equal to the angle of reflection.Better Answer:(This answer applies to all waves, e.g. sound, ripples, earthquakes, but the answer is given in terms of light waves.)The angle of incidence never equals the angle of refraction except in the peculiar circumstance when there is an interface between two materials of exactly the same index of refraction.The angle of refraction is the direction of the wave exiting the surface and the angle of incidence is the angle entering the surface.These two angles are related by Snell's law and by Snell's law one would conclude that the index of the medium of the incident beam would be exactly the same as the index of the transmitted beam. In optical terms, it would mean the wave propagates as though there were no interface and the two mediums were actually the same medium. In that case, there would be no reflection as well.So, one does not expect this to happen, not because it can't, but because the wave travels through the surface as though the surface did not exist and that is both unusual and uninteresting.
How does the index of refraction affect frequency?
The index of refraction does not affect the frequency of light. Frequency is determined by the source of the light and remains constant as light travels through different mediums with varying indexes of refraction. The only property that is affected by the index of refraction is the speed of light.
Which describes a material with a high index of refraction?
A material with a high index of refraction bends light more than a material with a low index of refraction. This means that light travels slower through the material and the material appears denser to light. Materials like diamond and glass have high indexes of refraction.
What happens when light passes from three different mediums like water to glass and glass to air?
When light passes from water to glass, it changes speed and direction due to the difference in refractive indexes between the two mediums. When it passes from glass to air, the light again changes speed and direction, leading to refraction and possible reflection at the interface. The bending of light at each interface is determined by Snell's Law, which relates the angle of incidence and refractive indexes of the two mediums.
If the speed of light was the same in all materials would a lens cause light rays to bend?
No. Without refraction at a boundary between media with different refractive indices, lenses wouldn't work. The only way we would have of forming real images would be with curved mirrors.
What are the 2 conditions when the direction does not change on refraction?
-- Light approaches the boundary between any two media along the normal direction. -- Light approaches the boundary at any angle and the indexes of refraction of both media are equal.
What happens when light travels to air to water?
The speed of the light wave slows Some light is reflected off the surface of the water The light that enters the water is "refracted" (the direction of propagation changes due to the different indexes of refraction in air and water) Eventually the water will absorb all the energy of the light if the water is deep enough
What type of stock indexes are there?
There are indexes that cut across industries; there are indexes that deal with one industry only. Indexes include varying numbers of stocks.
What happens to a speed of a light ray as it passes from water to air?
It gets faster. As a result, it also changes its direction.
What happens when light and its wavelength travels from one medium to another?
When light travels from one medium to another, its wavelength may change. This is known as refraction. The speed and direction of light may also change depending on the difference in refractive indexes between the two medium.
How many indexes can be created in a table?
we can create 16 indexes 1 primary index 15 secondary indexes You should not create more than five indexes for any one table because: Whenever you change table fields that occur in the index, the index itself is also updated. The amount of data increases. The optimizer has too many chances to make mistakes by using the 'wrong' index. If you are using more than one index for a database table, ensure that they do not overlap.
