Question

electromagnetic waves are transverse waves that contain electric and magnetic fields. these waves are shown on a diagram called the electromagnetic spectrum. the electromagnetic spectrum is a range of all the electromagnetic energy from low electromagnetic energy to high electromagnetic energy. radio waves, microwaves, and infrared waves are all waves that have low electromagnetic energy. they have a long wavelength and low frequency. radio waves are used for communications such as radio and television signals. microwaves are used in cell phone towers, radar guns, and ovens. infrared waves are used in remote controls and thermal imaging cameras. radio waves have long wavelengths. what does that tell us about their frequency? they have high frequency. they have low frequency. frequency is unrelated to wavelength.

Explanation:

From the text, radio waves have long wavelengths. Also, it is stated that waves with low electromagnetic energy (like radio waves) have long wavelengths and low frequency. So, long wavelength implies low frequency.

Answer:

They have low frequency.