Light waves Definition and 106 Threads

If an moving electric charge produces light waves what is it is oscillating?

I've been trying to get the anwser to this question for awhile. Any help is appreciated. :confused: 1. A glass plate (n=1.61) is covered with a thin, uniform layer of oil (n=1.24). A light beam of variable wavelength from air is incident normally on the oil surface. Observation of the...

Dear all, A beam of parrllel light of wavelength 450 nm is incident normally on a diffraction grating with 6000 lines peer cm. Would u give me some idea how to find the maximum number of orders of diffraction thact can be seen on each side of the central (zeroth order) maximuum of the far...

Hi, I have recently read a book called E=MC^2 (David Bodanis). It is an interesting book that goes over the history of the famous equation, but it left me with a few questions. The story goes into the issue of light being a combination of electric and magnetic fields, but doesn’t go much...

Heres a quick question: while conducting an experiment to demonstrate the effect of polarising light waves, i noticed a strange effect. The lecturer used milk and water mixed in a container with a light shining through, allowing the light beam to show. When we looked at the beam from the side...

ok, so I'm sitting in class one day, and my physics teacher is talking about light... and since we had just finished up a section on sound, I was wondering whether there is such an effect as a "light-boom" that is to say, if we were to have a spaceship that could go exactly at the speed of...