A series of waves, with wavelength decreasing from left to right in the center. Above are a series of ovals labeled from left to right radio 10 superscripts 3, microwave 10 superscripts negative 2, TV remote 10 superscripts negative 5, visible 0.5 times 10 superscript negative 6 light bulb, ultraviolet 10 superscript negative 8 suns, X-ray 10 superscript negative 10 nuclear symbols shared with next label, gamma-ray 10 superscripts negative 12. Above that are pictures of the named items and above that Wavelength (meters). Below the waves says About the size of a. . . and below that from left to right and matching up with the wavelength labels, labeled images of a building, human, honey-bee, pinpoint, protozoan, molecule, atom, atomic nucleus. Which electromagnetic wave has the shortest wavelength?

Which electromagnetic wave would have a wavelength approximately the size of the tip of a pencil?

Which electromagnetic wave has the longest wavelength?