- 1(current)
Q. No.The total energy of an electron is \(3.555~\text{MeV}\). Its kinetic energy will be:
1. \(3.545~\text{MeV}\)
2. \(3.045~\text{MeV}\)
3. \(3.5~\text{MeV}\)
4. none of the above
Subtopic: Â Electron Emission |
From NCERT
AIPMT - 1999
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NEET 2023 - Target Batch - Aryan Raj Singh
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Which of the following is not the property of cathode rays:
| 1. | it produces a heating effect. |
| 2. | it does not deflect in the electric field. |
| 3. | it casts a shadow. |
| 4. | it produces fluorescence. |
Subtopic: Â Electron Emission |
 67%
From NCERT
AIPMT - 2002
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints
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J.J. Thomson's cathode-ray tube experiment
demonstrated that:
| 1. | cathode rays are streams of negatively charged ions |
| 2. | all the mass of an atom is essentially in the nucleus |
| 3. | the e/m of electrons is much greater than the e/m of protons |
| 4. | the e/m ratio of the cathode ray particles changes when a different gas is placed in the discharge tube |
Subtopic: Â Electron Emission |
 53%
From NCERT
AIPMT - 2003
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
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NEET 2023 - Target Batch - Aryan Raj Singh
- 1(current)
Q. No.
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