X-rays are also known as:
Correct answer: B. Roentgen rays
- A. Rydberg rays
- B. Roentgen rays
- C. Ultraviolet rays
- D. Zig-zag rays
- E. Ruby rays
Explanation
The correct answer is Roentgen rays. X-rays were discovered by Wilhelm Conrad Roentgen in 1895, and in honour of his discovery, they are often called Roentgen rays. This discovery was pivotal in the development of diagnostic imaging in medicine. The other options are incorrect as they do not relate to the historical or scientific context of X-rays. Rydberg is associated with atomic spectra, ultraviolet rays are a different part of the electromagnetic spectrum, and 'zig-zag rays' and 'ruby rays' are not scientifically recognised terms related to X-rays.
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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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