Difference between cathode rays and positive rays
Difference Between Cathode Rays And Positive Rays
SN | Cathode Rays | Positive Rays |
---|---|---|
1. | Cathode rays are made of negatively charged particles (electrons). | Positive rays are made of positively charged particles. |
2. | The charge is equal to the electron charge. | The value of charge on them is an integral multiple of electron charge. |
3. | Their velocity is much higher. | Being heavy, their velocity is less. |
4. | Mass is less i.e. equal to electron mass. | Mass is more and is equal to the atomic weight of the gas present in the discharge tube. |
5. | Kinetic energy is less. | Kinetic energy is more. |
6. | Specific charge (e/m) is more and it is a universal constant. | Specific charge (q/m) is less and not a universal constant. |
7. | Cathode rays were discovered by JJ Thomson. | Positive rays were discovered by Goldstein. |
8. | Their ionizing power is less. | Their ionizing power is more. |
9. | Their penetrating power is more. | Their penetrating power is less. |
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