2006-12-13 01:41:07 · 3 answers · asked by muhd i 1 in Science & Mathematics ➔ Physics
Term you are using is not correct.
i think what you wanted to ask about was cathode rays.
If its true then:
Cathode rays are streams of electrons observed in vacuum tubes, i.e. evacuated glass tubes that are equipped with at least two electrodes, a cathode (negative electrode) and an anode (positive electrode) in a configuration known as a diode.
When the cathode is heated, it emits some radiation which travels to the anode. If the inner glass walls behind the anode are coated with a phosphorescent material, they glow. A metal shape placed between the electrodes casts a shadow on the glowing coating. This suggested that the cause of the light emission was comprised of rays emitted by the cathode and hitting the coating. They travel towards the anode in straight lines, and continue past it for some distance.
Cathode rays produce flourescence in flouroscent materials like zinc sulphide , barium platinocyanide etc.
2006-12-13 01:43:52 · answer #1 · answered by Som™ 6 · 1⤊ 0⤋
Fluorescence is a process where short wavelength light interacts with some material to produce longer wavelength light. So I suppose fluorescent rays are just light rays.
2006-12-13 09:58:41 · answer #2 · answered by campbelp2002 7 · 0⤊ 0⤋
?
2006-12-13 10:17:00 · answer #3 · answered by Kmart 2 · 0⤊ 1⤋