Gamma rays can be diffracted most easily.
microwaves
gamma radiations..
Visible light.
Right around the visible light band.
UHF (Ultra High Frequency)
A:visible light waves
The visible spectrum is one band within the full range of electromagnetic radiation.
That would be a spectrum or band.
gamma radiations..
Gheresi
That's the portion of the spectrum that we call "gamma rays".
That would be sound waves, or the audio spectrum.
The lowest frequency is effectively zero and this would be in the extremely low frequency (ELF) band in the sub-radio range of the electromagnetic spectrum.
Visible light.
The radio band is the least energetic section of the electromagnetic spectrum.
Perhaps you are after the word band or bandwidth.
Gamma rays
The portion of the electromagnetic spectrum that produces radiant energy is sometimes referred to as electromagnetic waves. It is not visible to the human eye.