Here's a breakdown:

* 0.1 µm: This is the shortest wavelength of shortwave radiation, typically associated with ultraviolet (UV) radiation.

* 3 µm: This is the longest wavelength of shortwave radiation, representing the boundary with the longer wavelengths of infrared radiation.

Keep in mind:

* Shortwave radiation is the energy from the sun that reaches the Earth.

* Longwave radiation is the energy that the Earth emits back into space.

* The specific wavelengths within the shortwave radiation range can be further categorized as:

* Ultraviolet (UV): 0.1 to 0.4 µm

* Visible: 0.4 to 0.7 µm

* Near-infrared (NIR): 0.7 to 3 µm

It's important to remember that these are approximate ranges, and the specific wavelengths emitted by the sun can vary depending on factors like solar activity.