Flash of light thought experiment, need explanation

Click For Summary
SUMMARY

The discussion centers on the implications of the Lorentz transformation in special relativity, specifically regarding the behavior of a photon in different inertial frames. In frame K, a photon travels a distance L, while in frame K', moving at velocity Beta*c, the distance appears contracted due to the Lorentz factor. The participants conclude that both time and distance intervals must be adjusted to maintain the constant speed of light across different frames, confirming the principles of Einstein's theory of relativity.

PREREQUISITES
  • Understanding of special relativity concepts
  • Familiarity with the Lorentz transformation
  • Basic knowledge of photon behavior in physics
  • Concept of inertial frames of reference
NEXT STEPS
  • Study the Lorentz transformation equations in detail
  • Explore the implications of time dilation and length contraction
  • Investigate the concept of simultaneity in different frames
  • Learn about the experimental verification of the speed of light constancy
USEFUL FOR

Students of physics, educators teaching special relativity, and anyone interested in understanding the behavior of light and motion in different inertial frames.

marmot
Messages
55
Reaction score
1
So suppose in frame K at x_1 a photon is emmited and its absorbed at x_2= x_1+L so, the photon in K has traveled a total distance of L. Now suppose we have frame K' moving at some velocity Beta*c. Why is it that in K' the distance traveled by the photon is different than L if the speed of light is constant? I did this problem and got that. I am scratching my head at this.
 
Physics news on Phys.org
Because in K', the distance the photon traveled and the time in which it traveled are shorted by the same multiplier- the Lorentz transform parameter.
 
I think that makes sense. So you need to fudge the time and distance interval so that the speed of light is constant, right?
 

Similar threads

  • · Replies 6 ·
Replies
6
Views
1K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 55 ·
2
Replies
55
Views
4K
  • · Replies 26 ·
Replies
26
Views
4K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 16 ·
Replies
16
Views
4K
  • · Replies 28 ·
Replies
28
Views
2K
  • · Replies 123 ·
5
Replies
123
Views
8K
  • · Replies 17 ·
Replies
17
Views
3K
  • · Replies 12 ·
Replies
12
Views
2K