In prism, is angle of deviation related with the refractive index of prism?

AI Thread Summary
The discussion centers on the relationship between the angle of deviation in a prism and its refractive index. Participants note that for specific angles of incidence, emergence, and deviation, the angle of deviation may increase with a higher refractive index. Snell's law and trigonometric identities are suggested as tools for further explanation. One user highlights a misunderstanding regarding internal reflection in the context of the angle of incidence equaling the angle of the prism. Ultimately, the conversation emphasizes that the angle of deviation is influenced by the refractive index under certain conditions.
lamborg
Messages
2
Reaction score
0
Optics, prism and angle of deviation

1. Angle of incidence, emergence and deviation are respectively 30, 60 and 45 degree.



2.
7nkj.jpg




3. I think that it is irrespective of the refractive index.
 
Last edited:
Physics news on Phys.org
Welcome to PF!

Hi lamborg! Welcome to PF! :smile:
lamborg said:
I think that it is irrespective of the refractive index.

Why?

Explain, using Snell's law (the sin/sin law), and basic trigonometric identities :wink:
 


tiny-tim said:
Hi lamborg! Welcome to PF! :smile:


Why?

Explain, using Snell's law (the sin/sin law), and basic trigonometric identities :wink:

Oh yeah, I just forgot about that. Need to revise. :)


Thanks
 
Also, your image does not show any internal reflection to begin with. So I don't understand your qualification:

"... such that no internal reflection takes place ..."
 
In case the angle of incidence is equal to the angle of prism ,the angle of deviation increases with increase in refractive index. THUS angle of deviation increases with increase in refractive index.
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Glass prism and its refractive index
Replies
1
Views
2K
How do I find refractive index uncertainties?
Replies
3
Views
4K
How do I find the refractive index in sugar solutions?
Replies
13
Views
4K
What is the refraction index of liver?
Replies
5
Views
2K
Minimal angle of deviation through the prism
Replies
7
Views
2K
Prism : what if incident angle is greater than apex angle?
Replies
6
Views
2K
Light rays passing through a glass prism
Replies
2
Views
2K
What Angle Does Light Emerge from a Prism?
Replies
4
Views
3K
Optical Prism: Refractive Index & Light Rays
Replies
7
Views
2K
For which incidence angle the ray won't come out of the prism's surface....
Replies
11
Views
2K

Hot Threads

Recent Insights

Back
Top