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Thermionic Emission MCQ (Multiple Choice Questions) PDF Download
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Thermionic Emission MCQs: Questions and Answers PDF Download
The process of emission of electrons from the hot metal surfaces is called
- plastic emission
- thermionic emission
- static emission
- current emission
The process of emission of electrons from hot metal surface is called
- electronic emission
- thermionic emission
- electron capture
- proton loss
The particles emitted from hot cathode surface are
- negative ions
- positive ions
- protons
- electrons
The cathode rays carry
- positive charge
- neutral
- negative charge
- positrons
At room temperature, the electron cannot escape metal surface due to
- attractive forces of nucleus
- repulsive forces of electrons
- repulsive forces of nucleus
- pulling force of protons
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Grade 9 Physics MCQ Questions
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Thermionic Emission MCQs Book Questions
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