I WONDER - What Is Wave length?

The video tutorial explains the concepts of frequency and wavelength, defining frequency as the number of waves passing a point per second, measured in Hertz. It describes wavelength as the distance between identical points on consecutive waves. The relationship between speed, frequency, and wavelength is expressed by the formula: Speed = Frequency x Wavelength. An example of light waves is provided, highlighting their high frequencies in the terahertz range and their speed of approximately 299,792 km/s in a vacuum.

What range of frequencies do light waves operate in?

What is the speed of light waves in a vacuum?