0ddrenaline wrote:What is the effect of a comatic aberration on a lens' image?
The image appears to have a "tail" due to different magnifications along the lens
(also, which part of the rules does this fall under?)
I believe it is under d-vi as coma is typically seen in telecopes.
Re: Optics B/C
Posted: December 20th, 2016, 2:21 pm
by 0ddrenaline
kenniky wrote:
0ddrenaline wrote:What is the effect of a comatic aberration on a lens' image?
The image appears to have a "tail" due to different magnifications along the lens
(also, which part of the rules does this fall under?)
Correct. Also, I agree with appleshake. The coma appears in telescopes. Be prepared. With such restrictive test rules, you will probably meet an event supervisor who stretches the rules like this. Although, I think the question is justifiable.
New question
Re: Optics B/C
Posted: December 24th, 2016, 11:28 am
by kenniky
Interesting lol
Question:
In the prism below, α is 35° and θ is 19°. The prism has index of refraction 1.45 and is in a vacuum
What is the deviation?
Re: Optics B/C
Posted: December 29th, 2016, 8:58 am
by Bob_117
kenniky wrote:Interesting lol
Question:
In the prism below, α is 35° and θ is 19°. The prism has index of refraction 1.45 and is in a vacuum
What is the deviation?
27.72°
Re: Optics B/C
Posted: December 29th, 2016, 9:51 am
by kenniky
Bob_117 wrote:
kenniky wrote:Interesting lol
Question:
In the prism below, α is 35° and θ is 19°. The prism has index of refraction 1.45 and is in a vacuum
What is the deviation?
27.72°
Correct!
Re: Optics B/C
Posted: December 29th, 2016, 11:31 am
by Bob_117
A ray of light traveling through a vacuum strikes medium 1 with an angle of incidence of 43 degrees, and an angle of refraction of 36. Another ray of light traveling through a vacuum strikes medium 2 with an angle of incidence of 87 degrees, and an angle of refraction of 26.
A. Given the index of refraction for a vacuum is 1 find the refractive indices for both mediums.
B. Then find the Brewster angle for the interface of medium 1 and medium 2, where medium 1 is the first medium for light to pass through.
Re: Optics B/C
Posted: January 7th, 2017, 4:53 pm
by John Richardsim
Bob_117 wrote:A ray of light traveling through a vacuum strikes medium 1 with an angle of incidence of 43 degrees, and an angle of refraction of 36. Another ray of light traveling through a vacuum strikes medium 2 with an angle of incidence of 87 degrees, and an angle of refraction of 26.
A. Given the index of refraction for a vacuum is 1 find the refractive indices for both mediums.
B. Then find the Brewster angle for the interface of medium 1 and medium 2, where medium 1 is the first medium for light to pass through.
A:
Medium 1- n=1.2
Medium 2- n=2.3
B:
63 degrees
Re: Optics B/C
Posted: January 8th, 2017, 12:42 pm
by Bob_117
John Richardsim wrote:
Bob_117 wrote:A ray of light traveling through a vacuum strikes medium 1 with an angle of incidence of 43 degrees, and an angle of refraction of 36. Another ray of light traveling through a vacuum strikes medium 2 with an angle of incidence of 87 degrees, and an angle of refraction of 26.
A. Given the index of refraction for a vacuum is 1 find the refractive indices for both mediums.
B. Then find the Brewster angle for the interface of medium 1 and medium 2, where medium 1 is the first medium for light to pass through.
A:
Medium 1- n=1.2
Medium 2- n=2.3
B:
63 degrees
You got it.
Re: Optics B/C
Posted: January 8th, 2017, 12:46 pm
by John Richardsim
I want a mirror that can give me an image that is upright and has a height that is less than the object's height. What type of mirror do I need and where must the object be placed?
Re: Optics B/C
Posted: January 8th, 2017, 12:53 pm
by jonboyage
John Richardsim wrote:I want a mirror that can give me an image that is upright and has a height that is less than the object's height. What type of mirror do I need and where must the object be placed?
You need a diverging mirror. The object can be placed anywhere in front of the mirror
