Yes, there are limits in size for electromagnetic radiation wavelength. The wavelength of electromagnetic radiation can span an extremely wide range, from infinitesimally small values to very large values. However, there are practical and physical limitations that define the boundaries of the observable electromagnetic spectrum.
On the shorter wavelength end of the spectrum, we have gamma rays, X-rays, and ultraviolet (UV) radiation. These have very small wavelengths, typically ranging from picometers (10^-12 meters) to nanometers (10^-9 meters). Gamma rays have the smallest wavelengths among electromagnetic waves.
Moving towards longer wavelengths, we encounter visible light, which spans a range of approximately 400 to 700 nanometers. Beyond visible light, we have infrared radiation, microwaves, and radio waves, which have increasingly longer wavelengths.
In theory, there is no strict lower limit on wavelength, but there are practical limitations due to technological constraints and limitations of detection. On the other hand, there is a physical limit to the upper end of the electromagnetic spectrum. As the wavelength approaches and surpasses the size of the observable universe, the concept of wavelength becomes less meaningful and loses relevance.
It's important to note that the size of the wavelength also affects the energy and properties of the electromagnetic radiation. Shorter wavelengths are associated with higher energy radiation, while longer wavelengths have lower energy. This relationship is described by Planck's equation, which relates energy (E) to frequency (f) using the constant h (Planck's constant):
E = hf
So, while there are no absolute limits on the size of electromagnetic radiation wavelengths, there are practical and physical boundaries within which they are observed and studied.