Register to reply

Diffraction grating & young double slit -light not perpendicular to grating

by nousername
Tags: diffraction, double slit, interference, light
Share this thread:
nousername
#1
Aug7-11, 12:31 AM
P: 31
1. The problem statement, all variables and given/known data

I was a asked a question from an experiment: What happens if the light shone into the diffraction grating or a double slit is not perpendicular to the diffraction grating or double slit? What will happen?


3. The attempt at a solution

Straight away i can tell that the light might not arrive coherently to the slits because of this. But i don't know how incoherent light coming out of the slits will effect anything. All i can imagine happening is that the interference pattern will just shift, so lines of reinforcement will not appear where they were before, but the fringe separation (for double slit) will not be effected at all? Am i right? Or wrong?
Phys.Org News Partner Science news on Phys.org
Fungus deadly to AIDS patients found to grow on trees
Canola genome sequence reveals evolutionary 'love triangle'
Scientists uncover clues to role of magnetism in iron-based superconductors
ehild
#2
Aug7-11, 09:38 AM
HW Helper
Thanks
P: 10,531
Find the path difference between the rays going through two neighbouring slits. I drawing would be beneficial.


ehild


Register to reply

Related Discussions
Single slit interference and Diffraction Grating ! General Physics 2
Collimating light from diffraction grating Introductory Physics Homework 1
Calculating Wavelength with grating, single, and double slit diffraction patterns Introductory Physics Homework 10
Diffraction Grating, Maxima, finding slit seperation Introductory Physics Homework 5
Young's Double Slit vs. Diffraction grating Introductory Physics Homework 1