2006-06-29 06:39:51 · 3 answers · asked by mes 1 in Science & Mathematics ➔ Physics
The CD's concentric ridges separates white light into all the colours that make it up. The colours you see reflecting from a CD are INTERFERENCE of colors , like the colours you see on a soap bubble or an oil slick.
2006-06-29 07:31:23 · answer #1 · answered by 99 ks 2 · 0⤊ 0⤋
It actually diffracts. A CD's film is covered by millions of concentric ridges. These ridges are spaced closely enough corresponding to the wavelengths of visible light. That's why diffraction occurs and we see the colours.
2006-06-29 13:51:23 · answer #2 · answered by ag_iitkgp 7 · 0⤊ 0⤋
THE VARIOUS TRACKS ON THE DISC ARE PRECISELY THE MAIN REASON WHY WE SEE RAINBOWTIC COLOURS.
THERE ARE SUNKEN AREA BETWEEN 2 TRACKS WHICH CAUSE THE LIGHT TO DISPERSE
2006-06-29 13:52:10 · answer #3 · answered by VIVEK 1 · 0⤊ 0⤋