X-rays can be produced by bombardment of _ on target metal:
Correct answer: B. Electrons
- A. Protons
- B. Electrons
- C. Neutrons
- D. Alpha particles
Explanation
X rays are produced due to electrons. When a heated filament emits electrons by thermionic emission in a glass envelope.These electrons are then accelerated using a high voltage. These accelerated electrons strike a metal target at an angle which produces X rays. This can further be explained by the diagram of a simple X Ray tube.
This question appeared on the UHS MDCAT 2012 paper, which you can sit online with every answer explained.
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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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