Skip to main content

All Questions

13 questions with no upvoted or accepted answers
2 votes
2 answers
130 views

Do Normal Incidence contradicts the definition of refraction?

Professor told our class that if someone wants to define refraction in words, it can be done as the following, The deviation of light from its path when it passes from one medium to another is called ...
user avatar
2 votes
0 answers
49 views

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 ...
Koustubh Jain's user avatar
2 votes
0 answers
246 views

If a beam of light follows the path $y(x)=y_0\sin(x/y_0)$, what is the index of refraction?

An exam question that showed up while I was studying: A plane wave refracts and follows a ray given by the equation $y=y_0\sin(x/y_0)$ where $y_0$ is a constant. Find the refractive index $n(y)$ ...
Pricklebush Tickletush's user avatar
1 vote
1 answer
71 views

Snell's Law- Extraordinary ray

I applied the snell's law to find the angle of refraction of the Ordinary and Extraordinary ray. And I got the correct answer 3.51. But I know my approach to the question is wrong because I applied ...
Akshat Shrivastava's user avatar
1 vote
0 answers
32 views

Refraction of light - Huygens' Principle

To elucidate the rationale behind the bending of light as it transitions between different mediums, Huygens' principle is predominantly employed. The procedure, as demonstrated in this video (link: ...
Voldemort's user avatar
1 vote
0 answers
156 views

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 ...
Rab's user avatar
  • 277
1 vote
0 answers
275 views

Laser travelling through a radially graded index of refraction

A laser beam propagates through a region whose refractive index varies as $\mu=\mu_0(\frac{r}{r_0})$. At a distance of R the beam makes an angle of 30° with the normal. Find the minimum seperation ...
Akshay Bodhare's user avatar
0 votes
0 answers
93 views

What is the angle of incidence in the following exercise?

Would like to verify which is the incident ray of light in this exercise According to provided solution the incidence ray is the top one and the correct angle of incidence is equals 60 degree (90 - 30 ...
szydan's user avatar
  • 101
0 votes
1 answer
53 views

How can the image be any size orher than the object?

Am image is just the set of images of all the points on the thing. The complete image has to be the same size as the object if there is exactly one image for each point on the object forming it. So an ...
user459284's user avatar
0 votes
1 answer
32 views

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 ...
Deniz Manas's user avatar
0 votes
0 answers
11 views

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 ...
Meripadhai's user avatar
0 votes
1 answer
67 views

Optical shift in a view from above

In the following case, two objects are moving to each other from two different media: Apparently, the distance between the two, at this moment, is not the sum of $6$ and $0.8$, but involves dividing ...
harry's user avatar
  • 256
0 votes
2 answers
466 views

Difficulty in understanding an optics question

So here's the question:- A thin film of transparent material of refractive index $1.52$ and thickness $0.42\ \rm \mu m$ forms a thin coating on glass of refractive index $1.60$. It is viewed by ...
user avatar