What is the wavelength of the KA band?

The KA band is a designation used for a specific range of microwave frequencies, typically from 26.5 GHz to 40 GHz. To understand why the answer involving 4/5 centimeter is correct, it is important to remember the relationship between frequency and wavelength, which is governed by the formula:

Wavelength (λ) = Speed of Light (c) / Frequency (f)

Given that the speed of light is approximately 3 x 10^8 meters per second, and using the frequency range of the KA band, we can derive its wavelength. When converting this into centimeters, one finds that the typical wavelengths associated with the KA band fall in the vicinity of 1 cm to 11.25 cm.

The specific answer of 4/5 centimeter is equal to 0.8 centimeters, which falls well within the broader understanding of short wavelengths in this frequency range. Therefore, identifying the KA band wavelength as 4/5 centimeter accurately reflects the physical principles governing its frequency characteristics.

Other options may suggest incorrect wavelengths that do not align with typical KA band allocations. Thus, 4/5 centimeters is validated as correct within the KA band parameters.