Which of the following emissions resulting from natural radioactivity passes through a str… — JAMB UTME

Which of the following emissions resulting from natural radioactivity passes through a strong electric field without undergoing any deflection?

Gamma rays ( $\gamma$ -rays)Cevap
B
Alpha particles ( $\alpha$ -particles)
C
Beta-minus particles ( $\beta^-$ -particles)
D
Positrons ( $\beta^+$ -particles)

Cevap

Gamma rays (

\gamma

-rays) carry no electrical charge, so they pass through an electric field without any deflection.

Gamma rays consist of neutral electromagnetic radiation (photons). Because their charge is zero, they experience no electrostatic force in an electric field and continue in a straight, undeflected path.

Adım Adım Çözüm

Identify the nature and electric charge of each type of radioactive emission.

Alpha particles have a charge of

+2e

, beta particles have a charge of

-e

+e

, and gamma rays are high-energy photons with zero net electric charge.

An electric field exerts an electrostatic force

F = qE

only on particles that carry a non-zero electric charge

q

Determine which emission experiences zero electrostatic force.

Since

q = 0

for gamma rays,

F = 0

, meaning gamma rays experience no deflection.

Uncharged radiation travels in a straight line unaffected by electrostatic or magnetic fields.

Anahtar Kavram

Electric Field Deflection of Radioactive Emissions

Tahmini Süre:45s

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