Is it possible to solve this problem without their index of refraction

In summary, to solve this problem, you can use Snell's law with the given angles. However, since the index of refraction is not provided, it is necessary to assume that the indices of both materials are equal. If the indices were equal, then the angles could still be different, but it is safe to assume that the light starts out in air/vacuum.
  • #1
jsalapide
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Light strikes the surface of a transparent material at an angle of incidence of 30. If the refracted angle in the transparent material is 20, what is the speed of light in the material?

Is it possible to solve this problem without their index of refraction?
If possible, how?
 
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  • #2


Use Snell's law.
 
  • #3


I've used it before, but the index of refraction is not given. Should I assume that the index of both material are equal?
 
  • #4


jsalapide said:
I've used it before, but the index of refraction is not given.
But the angles are given.
Should I assume that the index of both material are equal?
If the indices were equal, could the angles be different? One thing I would assume is that the light striking the material starts out in air/vacuum.
 

FAQ: Is it possible to solve this problem without their index of refraction

Is it necessary to know the index of refraction in order to solve a problem?

No, it is not always necessary to know the index of refraction in order to solve a problem. In some cases, other properties of the material or system can be used to find a solution.

How does the index of refraction affect the solution of a problem?

The index of refraction can affect the solution of a problem by determining the speed and direction of light as it passes through a medium. This can affect the angle of refraction, the amount of bending, and the final position of an object or image.

Can the index of refraction change in different situations?

Yes, the index of refraction can change in different situations. It can vary depending on the wavelength of light, the temperature, and the composition of the material. It can also change when light passes through multiple materials with different refractive indices.

Are there alternative methods for solving problems without knowing the index of refraction?

Yes, there are alternative methods for solving problems without knowing the index of refraction. For example, the Snell's Law equation can be used to solve for the angle of refraction without explicitly knowing the index of refraction.

What are the limitations of solving problems without the index of refraction?

The limitations of solving problems without the index of refraction include potential inaccuracies in the solution and a limited understanding of the behavior of light in different materials. It may also be more difficult to find a solution without knowing the refractive index.

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