X-rays and Cathode Rays

1. Introduction to Cathode Rays

  1. Cathode rays are streams of electrons emitted from the cathode in a vacuum tube.
  2. They were first observed by J.J. Thomson, who identified them as negatively charged particles (electrons).
  3. Cathode rays are produced when a high voltage is applied across a vacuum tube with a cathode and anode.
  4. They travel in straight lines and cause fluorescence when they strike certain materials.

2.