as the wavelength of a wave increases, the frequency... increases. decreases. does not change.
as the wavelength of a wave increases, the frequency... increases. decreases. does not change.
Answer
Answer:
B. decreases.
Explanation:
Step1: Recall wave - speed formula
The speed of a wave $v=\lambda f$, where $v$ is the wave speed, $\lambda$ is the wavelength, and $f$ is the frequency.
Step2: Analyze relationship
For a wave in a given medium, the wave speed $v$ is constant. Rearranging the formula gives $f = \frac{v}{\lambda}$. So, when $\lambda$ increases, since $v$ is constant, $f$ (frequency) decreases.