Infrared radiation doesn't have a single frequency. It's a range of electromagnetic radiation with frequencies lower than visible light but higher than microwaves.

Here's a breakdown:

* Visible Light: Frequencies range from roughly 430 to 750 terahertz (THz).

* Infrared (IR): Frequencies range from roughly 300 gigahertz (GHz) to 400 THz.

It's important to remember:

* Infrared radiation is not a single frequency. It spans a broad spectrum.

* The specific frequency within the infrared range determines the type of IR radiation. For example, near-infrared (NIR) has higher frequencies than far-infrared (FIR).

Let me know if you have any other questions!