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Question
Who was Charles G. Barkla?what did he discovered?
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Solution
Charles Glover Barkla (7 June 1877 – 23 October 1944) was a British physicist, and the winner of the Nobel Prize in Physics in 1917 for his work in X-ray spectroscopy and related areas in the study of X-rays (Roentgen rays).
His discovery is in the following paragraph
Following the discovery of X-rays, it was soon established that an irradiated compound emitted secondary X-rays. In secondary spectra, lines appeared corresponding to different wavelengths. Around 1906, Charles Barkla showed that each element's secondary spectrum was unique, irrespective of temperature, structure, and chemical composition. Its spectrum was therefore a characteristic property of an atom and thus became an important tool in atomic research.
His discovery is in the following paragraph
Following the discovery of X-rays, it was soon established that an irradiated compound emitted secondary X-rays. In secondary spectra, lines appeared corresponding to different wavelengths. Around 1906, Charles Barkla showed that each element's secondary spectrum was unique, irrespective of temperature, structure, and chemical composition. Its spectrum was therefore a characteristic property of an atom and thus became an important tool in atomic research.
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