how cathod rays were discovered?
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Answer:
discovered by cathod rays discharge tube
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Explanation:
Johann Hittorf discovered cathode rays in 1869 using a Crookes tube and noting shadows cast on the glowing wall of the tube opposite of the cathode. In 1897 J. J. Thomson discovered that the mass of the particles in cathode rays was 1800 times lighter than hydrogen, the lightest element.
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