Question

Which statement correctly describes the relationship between frequency and wavelength?

As the frequency of a wave increases, the wavelength increases.
As the frequency of a wave increases, the wavelength decreases.
As the frequency of a wave increases, the wavelength remains constant.

Answer 1

As the frequency of a wave increases, the wavelength decreases.

Reason: v = f·λ, so λ = v/f. For a given wave speed (e.g., light in vacuum, sound in a given medium), increasing frequency makes wavelength smaller.