A certain radio wave has a frequency of 2.0 * 10^6 Hz.

what is its wavelength?

The wave equation applies:

frequency*wavelength=speedoflight

2000000Hz

To calculate the wavelength of a radio wave, you can use the formula:

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

The speed of light is approximately 3.0 * 10^8 meters per second (m/s). In this case, the frequency (f) is given as 2.0 * 10^6 Hz.

Substituting these values into the formula:

Wavelength = (3.0 * 10^8 m/s) / (2.0 * 10^6 Hz)

To simplify it, you can divide both the numerator and denominator by 10^6:

Wavelength = (3.0 * 10^2 m) / (2.0 Hz)

Now, divide the numerator by 2.0:

Wavelength = 1.5 * 10^2 m

Therefore, the wavelength of the radio wave is 150 meters.