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JAMB Physics 1989 Question 31

Question 31

Electromagnetic Spectrum

Which of the following pairs is NOT part of the electromagnetic spectrum? I. Radio waves II. Beta rays III. Gamma rays IV. Alpha rays

  1. A.I and II
  2. B.III and IV
  3. C.I and III
  4. D.II and IV.
Show the answer and explanation

Answer: D (II and IV.)

Explanation

Beta and alpha 'rays' are streams of particles. Radio waves and gamma rays are electromagnetic waves.