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JEE PHYSICS MCQ: ATOMS

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Solid targets of different elements are bombarded by highly energetic electron beams. The frequency (f)\left( f \right) of the characteristic X-rays emitted from different targets varies with atomic number ZZ as
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Correct option: B
f∝Z2f \propto {Z^2}
Option B (f∝Z2f \propto {Z^2}) is correct because the frequency of characteristic X-rays is proportional to the square of the atomic number, as described by Moseley's law.

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