All Questions
Tagged with refraction homework-and-exercises
95
questions
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2
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101
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How can I prove that $T_\pi = 0$ at Brewster's angle? [closed]
So, I've been trying to prove this with pure trigonometry just for fun, without using the fact that $R + T = 1$, but no success. Here's my last try, using a combination of both facts that the angles ...
- 103
2
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0
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49
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Shouldn't a part of the ray have to travel $\frac{\lambda_2}{2}$ extra path in the medium $n_2$?
Basically, my teacher had given the class a question regarding thin film interference that, there is a medium with refractive index $n_1$ below that there is another medium with thickness $t$ with ...
- 296
2
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277
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What happens to light ray moving from one transparent medium to other at the angle of incidence $90^{\circ}$?
I think when a light ray moves from one transparent medium towards other at $90^{\circ}$ incidence angle,it will not suffer refraction but continue to move indefinitely in the initial medium. But, if ...
- 227
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85
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Exercise about refraction [closed]
I'm a highschooler and I'm trying to self-study the part of the program about optics. I'm having troubles understanding how to solve the following exercise (I'm using an italian book, hence the ...
- 540
3
votes
1
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201
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(How) can one use the concept of apparent depth to solve this ray-refraction problem?
I was solving the following question:
An observer can see through a small hole on the side of a jar (radius 15 cm) at a point at height of 15 cm from the bottom (see figure). The hole is at a height ...
2
votes
1
answer
103
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Refraction of light but slightly twisted
This is the question:
(I haven't bothered to type it because anyway I needed to put the picture of the circles.)
So, now what I did first was basic stuff and found that the first angle of refraction ...
- 186
0
votes
2
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112
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Understanding Snells Law in seismic waves
This is a homework question, Ill say it upfront.
The Problem is given so:
Earthquake causes a wave that meets a boundary between two rock substances. Incoming wave speed is 25 m/s and angle is 9 ...
- 103
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32
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Evaluating whether a surface apperance is light or dark for the case incident light is in normal direction
The Question:
The system in the figure is illuminated in the normal direction
by wide monochromotic light source in the first environment.
Explain in detail the light and dark condition of the ...
0
votes
1
answer
148
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Snell law with two unknowns [closed]
I having troubles with a basic geometric optics exercise which says:
The image shows a glass block immersed in water ($n_\text{water}=1,33$). What it’s the refraction index $n_\text{glass}$ of the ...
- 179
0
votes
1
answer
53
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Percentage of light less than the critical angle? [closed]
I am stuck on the following question:
"Calculate the fraction of the light incident on the surface with an angle less than the critical angle for total internal reflection"
The context of ...
- 1
0
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0
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11
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Why does a qualitative analysis of this question about refraction differ from the answer found through the application of the equation?
Suppose that an object O is in glass ($ \mu $ = 1.5), 6.5 cm from a spherical glass-air interface (from P in Figure 1) where glass is on the concave side and air is on the convex side. In the diagram ...
- 363
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1
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341
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Focal length of lens combination [closed]
The adjacent figure shows a thin plano-convex lens of refractive index $μ_1$ and a thin plano-concave lens of refractive index $μ_2$, both having same radius of curvature $R$ of their curved surfaces. ...
- 149
2
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1
answer
3k
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Derivation for optical path length and the origins of the formula
So I've learnt that the formula for optical path length is $OPL = ns$, where $n$ is refractive index of the medium and $s$ is its geometrical length, the problem is i cant really get around this ...
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-3
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53
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Problem involving lenses and mirrors [closed]
A biconvex lens of focal length 15 cm is in front of a plane mirror. The distance
between the lens and the mirror is 10 cm. A small object is kept at a distance of 30 cm
from the lens. The final image ...
- 47
0
votes
2
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260
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Apparent depth WITH viewing angle [closed]
So i did one physics problem where I should find apparent depth of 3m deep pool(index between liquid in pool and air is (√7)/2) and we are looking at pool from 30° angle.
I go to our favorite friend ...
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