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You can use Snell's Law. Note that you need two angles for this - the incoming angle, and the outgoing angle.
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How do you work out the angle of incidence and refraction?
Both can be calculated easily using Snell's Law, which you can find easily online. However to use Snell's law you will need one of the angle of incidence or refraction as well as the refractive index of the media the light ray passes through
How do you work out exterior angle for a triangle?
It is: 180-interior angle = exterior angle
When does angle-side-side in geometry work?
When the angle is 90 degrees.
How do you work out the length of a rectangle with the width and an angle?
It depends on what angle. The main angles of a rectangle are all 90 degrees and knowing that does not help. If however, the angle in question is the angle made by the diagonal with one of the sides, then it is possible to use a basic trigonometric ratio to work out the length. Details will depend on which angle is given.
What instrument measures angle and how do they work?
Some of the devices used to measure angle are Transit, Protractor and Compass.
At what angle does no refraction occur?
this angle is called the critical angle of a substance. To work it out you must know the refractive index of that substance.
How do you work out the angle of incidence and refraction?
Both can be calculated easily using Snell's Law, which you can find easily online. However to use Snell's law you will need one of the angle of incidence or refraction as well as the refractive index of the media the light ray passes through
What is the angle between a reflected and a refracted rays when a light ray is incident at 30 degrees on a parallel block of thickness 5cm and refractive index 1.5?
Light will be reflected at an angle of 30deg from the normal. We can work out the angle of refraction using the formula: n(1) sin(incident angle) = n(2) sin(refracted angle) We will assume the refractive index given is the relative refractive index n(2)/n(1). So sin(30)/1.5 = sin(r) r = 19.5 deg As the reflectedd and refracted rys are on the same side of the normal we can subtract them from 180 to get the angle between them: 180 - 19.5 - 30 = 130.5
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.
Is the law of refraction the same for light rays going in either direction between two media?
Yes. The mathematical law involving the indicies of refraction n1 & n2 and the angles A1 & A2 as; n1 Sin(A1) = n2 Sin(A2) will work regardless of which way the light is traveling. Just associate the variables n & A with the correct medium.
Why did Adolph Fick invent contact lens?
His work was based on early work, showing in theory how a lens with an appropriate curvature and refractive index could be overlaid on the cornea to provide refractive correction.
How does refractometer works?
A refractometer is a laboratory or field device for the measurement of an index of .... Automatic refractometers do not only measure the refractive index, but offer a lot of ... Refractometers and refractometry explains how refractometers work.
How do road reflectors work?
Because the light from the head lights reflect off of them giving the driver a glowing object and a clear view of what's around them. Usually glass beads or reflectors containing prisms. By a combination of refraction, reflection and refractive index. The light enters the reflector, gets bent and hits the internal wall. The refactive index causes total internal reflection, it then exits back the way it came.
How do you use the lensometer or lens clock for finding the refractive index of a lens?
The formula for calculating a lens' refractive power is as follows:n = (D * R) + 1, where n = refractive power, D = optical power in diopter, and R = lens curvature radius.A lens clock will give you an estimated optical power, d and from there you can work out the curvature radius by using the formula:R = (0.53)/d.A lensometer will give you the actual optical power, D.Input the R and D into the first formula and you will get the lens' refractive index, n.
What would be focal length and power of a glass when it is dipped in liquid of refractive index equal to glass?
Lenses operate on having another index than the immediate surrounding. Sink a lens in a media with the same index and it won't work. It'll be like it's all glass.
Is spearfishing hard with refraction?
no. all you have to do is work out the angle. you want 2 find more? then go on some COOL website, not the BORING wikianswers site okay? :-)
How opitical fiber work?
Refraction.
