I assume by light rays, you mean visible light rays. In this case, gamma rays have shorter wave lengths.
UV, x-rays, gamma rays.
Visible light waves typically range from 400 to 700 nanometers in length. However, the entire electromagnetic spectrum includes waves of varying lengths, from gamma rays with wavelengths shorter than 0.001 nanometers to radio waves with lengths of kilometers or more.
Gamma rays are of higher energy and much much shorter wavelength than visible light.
Yes, radio waves have a longer wavelength than visible light. They are part of the electromagnetic spectrum.
No, red light is not a gamma wave. Red light is a type of electromagnetic radiation with a longer wavelength than gamma rays. Gamma waves are a type of high-frequency electromagnetic radiation with very short wavelengths.
The answer is Ultraviolet Waves. But really the shortest so far found is Gamma Rays. They are a million million million of those Gamma Rays going past you each minute. Ultraviolet rays are shorter than regular light that we see, but not shorter than Gamma Rays.
Radio and microwaves are longer than visible light. So are heat (infrared) waves. Ultraviolet waves are shorter than visible light. So are X-rays and gamma rays.
Microwaves
Radio and microwaves are longer than visible light. So are heat (infrared) waves. Ultraviolet waves are shorter than visible light. So are X-rays and gamma rays.
It is electromagnetic radiation, which is the same in composition as visible light but has a much higher frequency/shorter wavelength, and will do damage to any biological material it passes through. Both travel at the same speed ('velocity of light') but gamma radiation can penetrate material opaque to visible light.
Light waves and X-rays are both forms of electromagnetic energy. X-rays, however, have higher energy (higher frequency and shorter wavelength) than (visible) light.
I'll answer your question for a variety of waves. For sound waves, higher pitch sounds have higher frequencies and shorter wavelengths. For water waves, the slowest moving waves have higher frequencies and shorter wavelengths. For seismic waves, S waves have higher frequencies and shorter wavelengths than P waves. For electromagnetic waves, X-rays and gamma rays have higher frequencies and shorter wavelengths than, say, visible light. For quantum mechanical, de Broglie waves, particles with classical analogues of momentum have higher frequencies and shorter wavelengths than individual particles.