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Standard XII
Physics
Law of Radioactivity
Roentgen : X-...
Question
Roentgen : X-rays : : Becquerel : ?
A
Uranium
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B
Radioactivity
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C
Fission
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D
Superconductivity
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Solution
The correct option is
C
Radioactivity
Roentagen discovered X-rays.
Similarly, Becquerel discovered radioactivity.
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