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Thomson determined the ratio by measuring the electrons':
ADeflections
BReflections
CRefractions
DDiffractions
Answer & Solution
Correct answer: A. Deflections
1. He varied the electric and magnetic field strengths.
2. He measured the amount of deflections observed by the electrons.
3. So the correct answer is deflections.
_Source: syllabus Chemistry, Ch 2 'Structure of Atom'_
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