conclusions of cathode ray experiment

The experiment Cathode Ray Tube (CRT) conducted by J. J. Thomson, is one of the most well-known physical experiments that led to electron discovery. In addition, the experiment could describe characteristic properties, in essence, its affinity to positive charge, and its charge to mass ratio.

A cathode ray tube is a hollow sealed glass tube which is under vacuum (has had all the air sucked out of it). Inside at one end is an electrical filament (which is actually called the cathode in this experiment) just like the one inside a light bulb.

Conclusion of Cathode Ray Experiment. Cathode Ray Experiment marked a revolutionary moment in the realm of science. J.J. Thomson's demonstration of cathode ray deflection and the identification of these rays as negatively charged particles conclusively affirmed the existence of subatomic particles.

These experiments revealed that cathode rays are streams of electrons, providing key insights into the structure of matter at an atomic level. Here's a detailed explanation of the process and findings: Cathode Ray Tube: This glass tube contains two metal electrodes under a high vacuum.

Conclusions: Thomson concluded that the rays were negatively charged and moved around the positive charge. The characteristics of these rays do not depend upon the nature of the electrode material or the nature of the gas-filled tube.

Vedantu has provided here a thorough explanation of the Cathode Ray Experiment along with Cathode Rays, How Do the Cathode Rays Work, Construction of a Cathode Ray Tube, Postulates of J.J. Thomson’s Atomic Model, and Practical Uses of Cathode Ray Tube Experiment along with examples.

In response, J. J. Thomson constructed some elegant experiments to find a definitive and comprehensive answer about the nature of cathode rays. Thomson had an inkling that the ‘rays’ emitted from the electron gun were inseparable from the latent charge, and decided to try and prove this by using a magnetic field.

Researchers trying to understand this phenomenon found that an unusual form of energy was also emitted from the cathode, or negatively charged electrode; this form of energy was called a "cathode ray".

Conclusion: Cathode rays travel in a straight line and can cast a shadow. Some scientists argued that since waves such as light can produce a similar observation, cathode rays are wave in nature. However, this observation could also be produced by particles.

Thomson’s Conclusion. A student of Thomson’s named C. T. R. Wilson had experimented with slowly falling water droplets that found that the charge on the corpuscles were, to the accuracy of the experiment, the same as the charge on a charged Hydrogen atom!