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JAMB Physics 2011 Question 28

Question 28

Electromagnetic Spectrum

Which of the following electromagnetic waves has the highest frequency?

  1. A.Infrared-rays.
  2. B.X-rays.
  3. C.Ultra-violent rays
  4. D.Radio waves.
Show the answer and explanation

Answer: B (X-rays.)

Explanation

In the electromagnetic spectrum the order of increasing frequency is radio, infrared, visible, ultraviolet, X-rays, gamma rays. Of the options, X-rays are highest.