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I did an experiment relating to salt concentration and refractive index I measured the angle of refraction with the incidence rays at 20 30 and 45 The results are coherent do I need to do repeats?
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Why does the incident angle not equal the angle of refraction?
i=incidence angle, r=angle of refraction Refractive index= sini/sinr Since for different materials value of refractive index is different hence both angles are not equal.
What will happen when two different medium of same refractive index?
The angle of incidence will equal the angle of refraction. If two medium have the same refractive index, light does not bend.
How do you compare the angle of incidence and the angle refraction?
The angles of light are the result of the law of sines: sine( incidence angle)/speed of incidence = sine(refraction angle)/ speed of refraction
How does the angle of the refraction compare with the angle of incidence in each case?
A comparison of the angle of refraction to the angle of incidence provides a good measure of the refractive ability of any given boundary. For any given angle of incidence, the angle of refraction is dependent upon the speeds of light in each of the two materials. The speed is in turn dependent upon the optical density and the index of refraction values of the two materials. There is a mathematical equation relating the angles that the light rays make with the normal to the indices (plural for index) of refraction of the two materials on each side of the boundary. This mathematical equation is known as Snell's Law
Why is it necessary for the angle of refraction to be equal to the angle of incidence when the angle of incidence is zero?
when the angle of refraction is zero you still need an angle of incidence because it still reflects back.
Describe an experiment to find the refractive index of a glass block?
You can investigate fraction in glass using a rectangular glass block. By tracing the rays of light on a piece of paper, you can measure the angles of incidence (i) and refraction (r). If you repeat this process for a range of different angles of incidence, you would find that the sine of the angle of incidence and the sine of the angle of refraction are constant. This ratio is called the refractive index of the material, and is given the letter n.The angles of incidence and refraction are related by the following equation:sin in=__________sin r
Does the index of refraction equal the angle of refraction?
Not exactly, the angle of refraction = the angle of incidence, which means the ratio of sine of angle of incidence to the sine of angle of refraction is constant for two media. That is sin i /sin r = constant , and this constant is called refractive index
Why does the incident angle not equal the angle of refraction?
i=incidence angle, r=angle of refraction Refractive index= sini/sinr Since for different materials value of refractive index is different hence both angles are not equal.
What will happen when two different medium of same refractive index?
The angle of incidence will equal the angle of refraction. If two medium have the same refractive index, light does not bend.
If Light goes from flint glass into ethanol The angle of refraction in the ethanol is 27.6 What is the angle of incidence in the glass?
If light goes from flint glass into ethanol and the angle of refraction in the ethanol is 27.6, the angle of incidence in the glass is approximately 23.21. This calculation is based on refractive index of pure flint glass being 1.60 and refractive index of ethanol being 1.361.
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 seize of the angle of refraction if the angle incidence is 0 degrees?
The answer is zero. (From Snell's law, if AI in the angle of incidence, AR is the angle of refraction, and n is the refractive index of the material doing the refracting, then: AR = arcsin[(1/n)sin(AI)] =0 if AI=0.
What is the bending of light rays as it passes from one material into another?
Index Of Refraction
How do you compare the angle of incidence and the angle refraction?
The angles of light are the result of the law of sines: sine( incidence angle)/speed of incidence = sine(refraction angle)/ speed of refraction
What will happen to the angle of refraction if the angle of incidence is made smaller for light passing from rarer to denser medium and how?
angle of refraction will also decrease as according to laws of refractio sin i/sin r= constant (CONSTANT IS THE REFRACTIVE INDEX OF THE MEDIUM).
How is trignometry used in optics?
Optics deals with refraction - the bending of light rays as they go from a medium of one optical density to another - as in an optical lens. Given the refractive indices of the two materials, the angle of refraction is related to the sine of the angle of incidence.
Does refractive index vary with the angle of incidence?
No. The refractive index is an absolute measure that determines by how much the angle of incidence is different from the angle of reflection.
