GK
CHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Gold Foil Experiment
|
|
|
Beryllium Experiment
|
|
|
Density Experiment
|
|
|
Cathode Ray Experiment
|
Detailed explanation-1: -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.
Detailed explanation-2: -On 30 April, 1897, J. J. Thomson announced the results of his previous four months’ experiments on cathode rays. The rays, he suggested, were negatively charged subatomic particles. He called the particles ‘corpuscles’.
Detailed explanation-3: -The presence of cathode rays were confirmed by making a hole in the anode which resulted in cathode rays striking the fluorescent zinc sulphide (ZnS) coating on the tube behind the anode.