Q: Electromagnetic waves vary in wavelength and in what property, which is lower in waves of longer wavelengths?


Read this paragraph and choose the correct option from the provided answers:

Electromagnetic waves vary in wavelength and frequency. Longer wavelength electromagnetic waves have lower frequencies, and shorter wavelength waves have higher frequencies. Higher frequency waves have more energy.

 Choices:

- size

- density

- resonance

- frequency


A:
frequency