Properties of Cathode Rays
Properties of Cathode Rays
Properties of Cathode Rays: They are the beam of electrons in the discharge tube as shown.
1. They emanate normally from the surface of the cathode and travel in straight lines at a high velocity. 2. They are a beam of minute material particles. 3. They consists of negatively charged particles. 4. The nature of cathode rays does not depend upon the nature of gas in the discharge tube and nature of cathode material. 5. For each negatively charged particle of cathode rays, the ratio of charge (e) to mass (m) is constant. Electrons are negatively charged particles and are denoted by ‘e’.  |
Which of the following statement / statements are correct : (a) They travel in straight lines at a high velocity. (b) They are a beam of minute material particles. (c) They consists of negatively charged particles. | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following statement / statements are correct : (a) Phosphors glow when cathode rays fall on them. (b) Cathode ray can penetrate through thin metal plates. | |||
| Right Option : C | |||
| View Explanation | |||
Which of the following statement / statements are correct : (a) Cathode rays travel in straight line. (b) Specific charge of cathode ray is constant. | |||
| Right Option : C | |||
| View Explanation | |||
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