JAMB Physics 2000 Question 38

Question 38

Radioactivity and Nuclear Physics

A certain radioactive source emits radiations that were found to be deflected by both magnetic and electric fields. The radiations are

  1. A.x-rays
  2. B.beta rays
  3. C.gamma rays
  4. D.ultra-violet rays.
Show the answer and explanation

Answer: B (beta rays)

Explanation

Only charged particles are deflected by electric and magnetic fields. Beta rays are electrons; X-rays, gamma rays and UV are uncharged electromagnetic waves.