Electrons are emitted in the production of X-rays by the process of:
Correct answer: C. Thermionic emission
- A. Conduction
- B. Convection
- C. Thermionic emission
- D. None of the above
Explanation
Electrons are emitted in the production of X-rays by heating a filament and this process is called thermionic emission and electrons themselves are called thermions.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Practise Atomic Spectra
356 free Atomic Spectra MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Atomic Spectra questions
An electron can stay in metastable state for:
Brackett series is obtained when all the transition of electron terminate at:
For an atom of hydrogen, the radius of the first orbit is given by:
1/λn = R [1/p2 - 1/n2] in this relation p= 1, 2, 3...... and n will be:
Each sentence below has a blank indicating that something has been omitted. Choose the word that best fits in with the meaning of the sentence as a whole.Because the soldier loved his country, he refused to _ national secrets to his enemy.
Spot the error. Because we had an accident on our car last year, I and Lauren had to pull out shortly before the event.