To find the frequency of a wave, you can use the equation:
frequency (f) = speed of light (c) / wavelength (λ)
The speed of light is approximately 299,792,458 meters per second (m/s). Substituting this value and the given wavelength of 12 meters into the equation:
f = c / λ f = 299,792,458 m/s / 12 m
Calculating this expression:
f ≈ 24,982,705.7 Hz
Therefore, the frequency of a microwave with a wavelength of 12 meters would be approximately 24,982,705.7 Hz (Hertz).