as wavelength decreases, frequency increases
Explanation:
The graph is missing, however we can still answer the question.
In fact, we know that the relationship between speed, frequency and wavelength of a wave is:
[tex]v=f\lambda[/tex]
where
v is the speed of the wave
f is its frequency
[tex]\lambda[/tex] is the wavelength
We can rewrite the equation as
[tex]f=\frac{v}{\lambda}[/tex]
From this second equation, we notice that the frequency is inversely proportional to the wavelength: [tex]f\propto \frac{1}{\lambda}[/tex]. This means that as the wavelength increases, the frequency decreases, and as the wavelength decreases, the frequency increases. So, the correct option is
as wavelength decreases, frequency increases
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