Pascal Principle with photons in a U tube

Click For Summary
SUMMARY

The discussion centers on the application of the Pascal Principle in a U tube setup where the inner walls are perfectly reflective and the tube has unequal cross-sectional areas of 2 square meters and 10 square meters. The inquiry specifically addresses whether light pressure effects influence the validity of the Pascal Principle in this context. The participants explore the implications of thermal radiation and light pressure on the behavior of the system, emphasizing the need for a deeper understanding of these interactions.

PREREQUISITES
  • Understanding of the Pascal Principle in fluid mechanics
  • Knowledge of thermal radiation and its properties
  • Familiarity with light pressure and its effects on surfaces
  • Basic concepts of reflective surfaces in physics
NEXT STEPS
  • Research the implications of light pressure on fluid dynamics
  • Study the principles of thermal radiation in closed systems
  • Examine the mathematical modeling of pressure in non-uniform cross-sectional areas
  • Explore advanced topics in optics related to reflective surfaces
USEFUL FOR

Physicists, engineering students, and researchers interested in fluid dynamics, thermodynamics, and optics, particularly those exploring the intersection of light and pressure in closed systems.

DaTario
Messages
1,097
Reaction score
46
Hello,

Supose you have an U tube, in which the inner walls are made absolutelly reflective. Now, put a termical state (temperature T) for the radiation field inside the tube and close it with reflective discs which can slide without friction. Supose further that de diameter of the tube in its terminations are not equal. For the sake of definiteness, let's assume 2 sq meters cross section in one side and 10 sq meters in the other. My question is: Taking into account light pressure effects , is the Pascal principle valid in this context ?


Best Regards

DaTario
 
Physics news on Phys.org
Here I seem to have repeated the question but with the title explaining more correctly my point.

Best Regards.
 

Similar threads

Graduate Quantum optical application of Pascal Principle
  • · Replies 2 ·
Replies
2
Views
4K
Graduate Quantum coherence in a gas sample
  • · Replies 2 ·
Replies
2
Views
2K
U-Tube (Pv=nRT, Pascals) Problem
  • · Replies 15 ·
Replies
15
Views
2K
Graduate Expanding space or contracting matter?
  • · Replies 7 ·
Replies
7
Views
3K
Graduate I have lots of questions on physics
  • · Replies 10 ·
Replies
10
Views
4K