Electrons are emitted in the production of X-rays by:
Correct answer: C. Thermionic emission
- A. Conduction
- B. Convection
- C. Thermionic emission
- D. None of these
Explanation
Electrons are emitted in the production of X rays by heating filament and this process is called thermionic emission and electrons are called thermions.
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About Atomic Spectra
Atoms emit or absorb light at specific wavelengths because electrons occupy quantized energy levels and change levels by absorbing or releasing photons. The topic covers emission and absorption spectra, spectral series, hydrogen’s line spectrum, energy-level transitions, and the relation between wavelength, frequency and photon energy.
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