All Questions
Tagged with refraction homework-and-exercises
95
questions
3
votes
4
answers
5k
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A lens inside a liquid is not visible. Why? [closed]
Are lenses inside liquid water invisible?
2
votes
1
answer
255
views
Problem on speed of light in a refractive medium
Here's the problem:
A beam of light moves in a slab of refractive index n in positive x direction. The slab itself is also moving in the positive x direction with respect to the lab frame. What is the ...
4
votes
2
answers
132
views
Time taken to reach from one point to another in refraction [closed]
According to Fermat's principle, path taken between two points by a ray of light is the path that can be traversed in the least time.
Suppose the source of light is point $(x_1, y_1)$ and speed of ...
0
votes
1
answer
4k
views
How do I find the constants in Cauchys equation for index of refraction for different wavelengths?
Im trying to find the indexes of refraction for my Dispersion of a Glass Prism lab.
Specifically I need to use Cauchy's equation to find the index of refraction for different wavelengths.
$$
n=a+\...
-1
votes
1
answer
96
views
How I can prove refractive index in an environment is this? [closed]
in "Applied Quantum Mechanics" by A.F.J. Levi, is a problem that I couldn't solve it can any solve it:
if electrical filed is:
$$
\mathbf{E}\left(\mathbf{r}, \omega \right) =\mathbf{E}_{0}\left(\...
1
vote
1
answer
7k
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Calculating angle of min deviation of prism [closed]
Two rays incident with angle 40 and 60 on one face of equilateral triangular prism the angle of deviation are equal .find angle of minimum deviation?
-1
votes
2
answers
705
views
Apparent depth is supposed to be independent of viewing angle but this seems inconsistent with critical angle refraction
When rays from the object at some depth are draw so as to be incident at the critical angle (or some angle just lower) the ray is refracted along the surface. Retracing this line would give you an ...
-5
votes
1
answer
244
views
Does this picture look wrong to anyone else? [closed]
There is a typo. One which obfuscates the main point and makes it difficult for anyone unfamiliar with the problem to deduce the answer.
1
vote
1
answer
178
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Reflective angles from a CD [closed]
How do I estimate the diffraction angles of laser light which illuminates a CD? Does the storage capacity have an impact?
Theories I have considered are:
refraction
diffraction
$\sin(\theta)=\frac \...
-2
votes
1
answer
191
views
Calculating angle of refraction of water in this lab setup? [closed]
The setup of the experiment is as drawn in the picture (where the red circle is a rotating disk, the box is a laser and the straight line the laser beam and the semi circle in the middle of the ...
5
votes
1
answer
34k
views
How to determine the radius of curvature of a convex lens?
Suppose there is an equi-convex lens made of glass which has a focal length ($f$) of 30cm. Then, can we not say that the radius of curvature, $R$ of the lens is twice the focal length, i.e. $R = 60cm$?...
1
vote
0
answers
156
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Aquarium/refractive indices/detector
Quick question: I'm currently fiddling around with this homework of mine and I seem to be lacking some basic optics knowledge apparently.
An aquarium is filled with a fluid as seen in the figure ...
1
vote
1
answer
268
views
Refraction under water
I have difficulties visualizing following task
A diver is $d = 10 m$ below the water surface ($n_{water} = 1.33$).
What is the diameter of the circle through which the diver can see the
sky?
...
0
votes
1
answer
2k
views
Angle of minimum deviation
A prism of angle $60^\circ$ deviates a ray of light through $40^\circ$ for two angles of incidence which differ by $11^\circ$. What is the refractive index of the glass of the prism?
If we are given ...
2
votes
1
answer
3k
views
Path of a light ray in a medium of varying refractive index [closed]
How do we get the equation for the path of a light ray in a medium of varying refractive index.
I can draw a rough sketch, but don't know how do we get the exact curve.
I encountered this while ...