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Question

Positively charged radiation was discovered by?

A
Chadwick
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B
Thomson
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C
Goldstein
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D
Bohr
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Solution

The correct option is D Goldstein
Goldstein discovered the presence of positively charged radiations in a gas discharge in 1886 and called them canal rays. They are also known as anode rays. These rays later led to the discovery of positively charged particles called protons.

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