Alan made the diagram below to represent ultraviolet rays, radio waves, gamma rays, and infrared rays based on their properties.
Four waves labeled A, B, C, and D are shown. Wave A has the greatest gap between its consecutive peaks and Wave B has the least gap between its consecutive peaks. Wave C has the second greatest gap between consecutive peaks, followed by Wave D.
The answer is Wave B because gamma rays have the least gap between their wavelengths. If you look up "electromagnetic spectrum" you will see that gamma rays have the least gap between them. I hope this helps (: