Optics B/C

Test your knowledge of various Science Olympiad events.
0ddrenaline
Member
Member
Posts: 136
Joined: May 21st, 2015, 6:36 pm
Division: Grad
State: MI
Has thanked: 3 times
Been thanked: 18 times

Re: Optics B/C

Post by 0ddrenaline »

John Richardsim wrote:Use c=3.00*10^8

What is the wavelength (in nm) of light with a frequency of 4.40*10^2 THz? What color of visible light does this correspond to?
682 nm, which corresponds to red light.
User avatar
John Richardsim
Wiki/Gallery Moderator Emeritus
Wiki/Gallery Moderator Emeritus
Posts: 739
Joined: February 26th, 2014, 10:54 am
Division: Grad
State: MI
Has thanked: 0
Been thanked: 2 times

Re: Optics B/C

Post by John Richardsim »

0ddrenaline wrote:
John Richardsim wrote:Use c=3.00*10^8

What is the wavelength (in nm) of light with a frequency of 4.40*10^2 THz? What color of visible light does this correspond to?
682 nm, which corresponds to red light.
Yep, good. Your turn.
0ddrenaline
Member
Member
Posts: 136
Joined: May 21st, 2015, 6:36 pm
Division: Grad
State: MI
Has thanked: 3 times
Been thanked: 18 times

Re: Optics B/C

Post by 0ddrenaline »

Image
The geometry of a compound microscope, which consists of two converging lenses, is shown in the picture above. The objective lens and the eyepiece lens have focal lengths of 2.8 mm and 3.3 cm, respectively. If an object is located at 3.0 mm from the objective lens, where is the final image located?
(sorry about the image quality)
User avatar
John Richardsim
Wiki/Gallery Moderator Emeritus
Wiki/Gallery Moderator Emeritus
Posts: 739
Joined: February 26th, 2014, 10:54 am
Division: Grad
State: MI
Has thanked: 0
Been thanked: 2 times

Re: Optics B/C

Post by John Richardsim »

0ddrenaline wrote:Image
The geometry of a compound microscope, which consists of two converging lenses, is shown in the picture above. The objective lens and the eyepiece lens have focal lengths of 2.8 mm and 3.3 cm, respectively. If an object is located at 3.0 mm from the objective lens, where is the final image located?
(sorry about the image quality)
11 cm behind the objective lens (18 cm behind the eyepiece).
0ddrenaline
Member
Member
Posts: 136
Joined: May 21st, 2015, 6:36 pm
Division: Grad
State: MI
Has thanked: 3 times
Been thanked: 18 times

Re: Optics B/C

Post by 0ddrenaline »

John Richardsim wrote:
0ddrenaline wrote:Image
The geometry of a compound microscope, which consists of two converging lenses, is shown in the picture above. The objective lens and the eyepiece lens have focal lengths of 2.8 mm and 3.3 cm, respectively. If an object is located at 3.0 mm from the objective lens, where is the final image located?
(sorry about the image quality)
11 cm behind the objective lens (18 cm behind the eyepiece).
You're right. Go ahead
User avatar
John Richardsim
Wiki/Gallery Moderator Emeritus
Wiki/Gallery Moderator Emeritus
Posts: 739
Joined: February 26th, 2014, 10:54 am
Division: Grad
State: MI
Has thanked: 0
Been thanked: 2 times

Re: Optics B/C

Post by John Richardsim »

Light with a wavelength of 6.00*10^2 nm in a vacuum enters water (n=1.33). What is the wavelength of the light in water?
0ddrenaline
Member
Member
Posts: 136
Joined: May 21st, 2015, 6:36 pm
Division: Grad
State: MI
Has thanked: 3 times
Been thanked: 18 times

Re: Optics B/C

Post by 0ddrenaline »

John Richardsim wrote:Light with a wavelength of 6.00*10^2 nm in a vacuum enters water (n=1.33). What is the wavelength of the light in water?
4.51*10^2 nm
User avatar
John Richardsim
Wiki/Gallery Moderator Emeritus
Wiki/Gallery Moderator Emeritus
Posts: 739
Joined: February 26th, 2014, 10:54 am
Division: Grad
State: MI
Has thanked: 0
Been thanked: 2 times

Re: Optics B/C

Post by John Richardsim »

0ddrenaline wrote:
John Richardsim wrote:Light with a wavelength of 6.00*10^2 nm in a vacuum enters water (n=1.33). What is the wavelength of the light in water?
4.51*10^2 nm
Yep, your turn.
0ddrenaline
Member
Member
Posts: 136
Joined: May 21st, 2015, 6:36 pm
Division: Grad
State: MI
Has thanked: 3 times
Been thanked: 18 times

Re: Optics B/C

Post by 0ddrenaline »

What is the effect of a comatic aberration on a lens' image?
kenniky
Member
Member
Posts: 283
Joined: January 21st, 2016, 6:16 pm
Division: Grad
State: MA
Has thanked: 0
Been thanked: 0

Re: Optics B/C

Post by kenniky »

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?)
Locked

Return to “2017 Question Marathons”

Who is online

Users browsing this forum: No registered users and 3 guests