A wave has a wavelength of 12 mm and a frequency of 16 hertz. What is its speed?

192 mm/s

Explanation:

The frequency, speed and wavelength of any given wave are related to one another by the formula;

fλ = v

Where f denotes the frequency, v the speed or velocity and λ the wavelength

We are given that;

λ = 12

f = 16

v = 16 * 12 = 192 mm/s