View Full Version : Diffraction of light


adwait3681
03-23-04, 02:17 AM
Hi all!
I am thinking whether it is possible to explain the concept of diffraction of light on the basis of curvature of space around matter. Any ideas?

-Adwait

John Connellan
03-23-04, 04:31 AM
There is very little curvature of space around a diffraction grating but it diffracts light very well. If the curvature around a grating could produce that effect, imagine what everyday objects would do all the time!

jamesm
03-23-04, 09:22 AM
The degree of diffraction is dependant, among other things, on the wavelength (ie colour) of the light.Spacetime curvature is dependant only on the mass and distance, so the two concepts do not reconcile well.
Apparent positional changes resulting from space curvature are well documented, ie
Eddingtons measurement of deflection of starlight during an eclipse in 1911, but this did not result in a change of wavelength of the starlight.

John Connellan
03-23-04, 10:17 AM
Thats a better answer than mine.