Calc Angle of Refraction in Opaque Drinking Glass Problem

  • Thread starter Thread starter U154756
  • Start date Start date
AI Thread Summary
To solve the problem of calculating the angle of refraction for an observer looking into a cylindrical opaque drinking glass, Snell's law can be applied, but determining the initial angle is crucial. The observer's position relative to the glass rim and the bottom edge provides necessary geometric relationships. When the glass is empty, the observer sees the bottom edge, while a full glass allows visibility of the center, indicating a change in viewing angles due to refraction. The index of refraction of the liquid, 1.29, is essential for applying Snell's law effectively. Clarifying the angles involved is the key to starting the calculation process.
U154756
Messages
9
Reaction score
0
A cylindrical opaque drinking glass has a diameter of 4.7 cm and a hieght h. An observer's eye is placed to where they are just barely looking over the rim of the glass. When the glass is empty, the observer can just barely see the edge of the bottom of the glass. When the glass is filled to be brim, the observer can just barely see the center of the bottom of the glass. The liquid in teh glass has an index of refraction of 1.29. Calculate the angle at which the observer is looking into the glass.

I could use Snell's law if I could figure out one of the angles in the equation. I am not sure on how to start this problem. Does anyone have an idea on how to obtain one of the angles from the information given. I know it has to be something simple that I am not thinking of.
 
Science news on Phys.org
**Bump**

I would like to know if anyone has found a way to solve this.

Please help.

-U
 
Thread 'A quartet of epi-illumination methods'

Thread 'A quartet of epi-illumination methods'

Well, it took almost 20 years (!!!), but I finally obtained a set of epi-phase microscope objectives (Zeiss). The principles of epi-phase contrast is nearly identical to transillumination phase contrast, but the phase ring is a 1/8 wave retarder rather than a 1/4 wave retarder (because with epi-illumination, the light passes through the ring twice). This method was popular only for a very short period of time before epi-DIC (differential interference contrast) became widely available. So...
View full post »

Thread 'Effective absorption coefficient of gold nanoparticles'

I am currently undertaking a research internship where I am modelling the heating of silicon wafers with a 515 nm femtosecond laser. In order to increase the absorption of the laser into the oxide layer on top of the wafer it was suggested we use gold nanoparticles. I was tasked with modelling the optical properties of a 5nm gold nanoparticle, in particular the absorption cross section, using COMSOL Multiphysics. My model seems to be getting correct values for the absorption coefficient and...
View full post »

Similar threads

I Prism Spectrometer Objective: Optics Question
Replies
9
Views
2K
Optics. A laser beam is refracted in a piece of glass.
Replies
1
Views
2K
Glass prism and its refractive index
Replies
1
Views
2K
The Difference in Refraction Angles of Different Colored Light
Replies
11
Views
4K
A When should I analyze optical problems using ray tracing vs. wavefront analysis?
Replies
12
Views
333
Why Does the Angle of Refraction Change in Borosilicate Glass Experiments?
Replies
3
Views
4K
The refractive index of an unknown liquid
Replies
1
Views
3K
Solve Snell's Law: Glass Cube Refractive Index = 1.77
Replies
8
Views
5K
Does Light Change Color When Refracted in Glass?
Replies
11
Views
5K
Snell's Law: Definition, Equations, Refractive Index & Critical Angle
Replies
1
Views
3K

Hot Threads

Recent Insights

Back
Top