Solved: PHYSICS Question for NEET

NEET PHYSICSEasy

Which of the following is deflected by electric field?

X-rays

Gamma rays

Neutrons

\alpha -particles

Principle: An electric field exerts a force ( $F = qE$ ) only on electrically charged particles, causing them to deflect from their path. Neutral particles or radiations pass through undefined .
Analysis of Options:

X-rays: These are high-energy electromagnetic radiations and are electrically neutral . They are not deflected.
Gamma rays: These are also electromagnetic radiations (neutral) emitted during radioactive decay . They are not deflected.
Neutrons: As the name implies, these are fundamental particles with no electric charge (neutral) . They are not deflected.
$\alpha$ -particles: These are helium nuclei ( ${}_{2}^{4}\mathrm{He}$ ), consisting of 2 protons and 2 neutrons. They carry a positive charge of $+2e$ .

Conclusion: Being positively charged, $\alpha$ -particles experience an electrostatic force in an electric field and are deflected.

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