Light Diffraction: Physics Basics Explained

  • Thread starter Thread starter primarygun
  • Start date Start date
  • Tags Tags
    Diffraction Light
AI Thread Summary
Light diffraction involves the bending and spreading of light waves when they encounter an obstacle or slit, resulting in interference patterns. The brightness of colors in these patterns is indeed proportional to their amplitude, with the center typically appearing the brightest due to constructive interference. Even with a single slit, multiple light beams can create interference, leading to a series of bright and dark fringes on a screen. The behavior of light diffraction differs from that of water waves, primarily due to the distinct properties of electromagnetic waves compared to mechanical waves. Understanding these principles is crucial for grasping the fundamentals of wave behavior in physics.
primarygun
Messages
233
Reaction score
0
http://www.geocities.com/thescience...ffraction.html]
Refer to this web site, please.
The brightness of the colour is proportional to its amplitude?
I can understand why the middle of the screen is the brightest, but in my mind, I think there should be only one area which is bright for a single-slit.
Is that light has many beams and able to create interference for even only a single-slit?
The diffraction of a light beam is really different from that of a water wave, isn't it?
 
Physics news on Phys.org
The page you requested was not found.
 
Yeah, fraction is spelled wrong, and there are too many "..."
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Diffraction pattern from a grating
Replies
3
Views
784
Why does diffracted white light have a white central fringe?
Replies
6
Views
6K
Hair/wire laser diffraction interference pattern
Replies
5
Views
3K
Single slit double slit and diffraction grating
Replies
3
Views
13K
Double slit experiment with a glass-covered slit of unknown n
Replies
3
Views
5K
B Explanation for bright fringes in Single Slit Diffraction
Replies
4
Views
2K
How Does Changing Variables Affect Light Diffraction Patterns?
Replies
9
Views
4K
Single-slit Diffraction Problem
Replies
4
Views
3K
Interference-Diffraction Pattern
Replies
6
Views
2K
A laser emitting light with a wavelength of 560 nm (Single slit).
Replies
3
Views
5K

Hot Threads

Recent Insights

Back
Top