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Question

Discovery of which amongst the following rays led to the discovery of proton?

A
Magnetic rays
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B
Cathode rays
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C
Canal rays
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D
Electromagnetic rays
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Solution

The correct option is C Canal rays

Eugen Goldstein in 1886 discovered the presence of positively charged rays in a gas discharge tube. He called these rays as canal rays. This experiment led to the discovery of protons.


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