Okay question...
The apex angle of a prism is 50.0 and the index of refraction of the prism material is 1.66. Calculate the minimum deviation angle?
Re: Optics B/C
Posted: December 12th, 2016, 12:20 pm
by John Richardsim
Fluorine wrote:Okay question...
The apex angle of a prism is 50.0 and the index of refraction of the prism material is 1.66. Calculate the minimum deviation angle?
39.1 degrees
Re: Optics B/C
Posted: December 12th, 2016, 3:21 pm
by Fluorine
John Richardsim wrote:
Fluorine wrote:Okay question...
The apex angle of a prism is 50.0 and the index of refraction of the prism material is 1.66. Calculate the minimum deviation angle?
39.1 degrees
Yep you got it! The formula can be annoying to solve in reverse but as long as your careful not too bad.
Re: Optics B/C
Posted: December 12th, 2016, 3:45 pm
by John Richardsim
Which type of lens is used to correct nearsightedness?
Re: Optics B/C
Posted: December 12th, 2016, 4:19 pm
by 0ddrenaline
John Richardsim wrote:Which type of lens is used to correct nearsightedness?
Diverging lens. Nearsightedness is the result of light focusing before it reaches the retina, so the lens must cause the light to diverge before it hits the eye.
Re: Optics B/C
Posted: December 12th, 2016, 5:30 pm
by John Richardsim
0ddrenaline wrote:
John Richardsim wrote:Which type of lens is used to correct nearsightedness?
Diverging lens. Nearsightedness is the result of light focusing before it reaches the retina, so the lens must cause the light to diverge before it hits the eye.
Yep.
Re: Optics B/C
Posted: December 13th, 2016, 8:30 am
by 0ddrenaline
Light travels from a material whose index of refraction is into another material whose index of refraction is . The opposite parallel surface of the second material is exposed to the air. (a) Find the critical angle at which light will be reflected at the interface of the materials. (b) Find the angle at which the light will pass through the interface and then be reflected at the opposite surface of the second material.
Re: Optics B/C
Posted: December 13th, 2016, 6:10 pm
by John Richardsim
0ddrenaline wrote:Light travels from a material whose index of refraction is into another material whose index of refraction is . The opposite parallel surface of the second material is exposed to the air. (a) Find the critical angle at which light will be reflected at the interface of the materials. (b) Find the angle at which the light will pass through the interface and then be reflected at the opposite surface of the second material.
a. 51 degrees
b. 19 degrees
Re: Optics B/C
Posted: December 13th, 2016, 7:16 pm
by 0ddrenaline
John Richardsim wrote:
0ddrenaline wrote:Light travels from a material whose index of refraction is into another material whose index of refraction is . The opposite parallel surface of the second material is exposed to the air. (a) Find the critical angle at which light will be reflected at the interface of the materials. (b) Find the angle at which the light will pass through the interface and then be reflected at the opposite surface of the second material.
a. 51 degrees
b. 19 degrees
Correct
Re: Optics B/C
Posted: December 13th, 2016, 7:41 pm
by John Richardsim
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?
into another material whose index of refraction is
. The opposite parallel surface of the second material is exposed to the air. (a) Find the critical angle at which light will be reflected at the interface of the materials. (b) Find the angle at which the light will pass through the interface and then be reflected at the opposite surface of the second material.