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Which of the radioactive radiations is not deflected by electric or magnetic fields?
AGamma rays
BBeta rays
CAlpha rays
DCathode rays
Answer & Solution
Correct answer: A. Gamma rays
1. Charged particles are deflected by electric and magnetic fields.
2. Alpha rays (+) and beta rays (-) are charged, so both get deflected.
3. Gamma rays are neutral electromagnetic waves with zero charge.
4. Being chargeless, gamma rays are not deflected by either field.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 6 Nuclear Physics "Nuclear Physics", p.84_
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