passwella.
Menu

JAMB Physics 1979 Question 40

Question 40

Electromagnetic Spectrum

Which of the following electromagnetic waves has the shortest wavelength?

  1. A.Radio waves
  2. B.X-rays
  3. C.Infra-red
  4. D.Blue light
  5. E.Ultraviolet.
Show the answer and explanation

Answer: B (X-rays)

Explanation

Of those listed, X-rays have the highest frequency and so the shortest wavelength.