cathode rays
Understand the Problem
The question is asking about cathode rays, which are streams of electrons observed in vacuum tubes. The question likely seeks information on their properties, history, applications, or experiments related to cathode rays.
Answer
Cathode rays are streams of electrons observed in discharge tubes.
Cathode rays are streams of electrons produced in discharge tubes and are observed as electron beams traveling from the negatively charged cathode to the positively charged anode.
Answer for screen readers
Cathode rays are streams of electrons produced in discharge tubes and are observed as electron beams traveling from the negatively charged cathode to the positively charged anode.
More Information
Cathode rays were crucial in the discovery of the electron by J. J. Thomson, leading to a deeper understanding of atomic structure. They are also fundamental to the operation of older technologies like cathode-ray tube (CRT) televisions and oscilloscopes.
Tips
A common mistake is confusing cathode rays with other rays like X-rays or light waves. Remember, cathode rays specifically refer to streams of electrons in a vacuum tube.
Sources
- Cathode ray - Wikipedia - en.wikipedia.org
- Definition and History of Cathode Ray - ThoughtCo - thoughtco.com
- Cathode ray | electron beam, X-rays, TV tubes - Britannica - britannica.com
