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If the wavelength is tripled, while the speed of the wave is held constant, what happens to the frequency?
A. Decreases to 1/3
B. Decreases to 1/9
C. Increases by 3
D. Increases by 9
E. Stays the same

Respuesta :

Answer :  A. Decreases to [tex]\dfrac{1}{3}[/tex]

Explanation :

We know the relation between speed, wave length and frequency

[tex]v = f \times \lambda[/tex]

If the wavelength is tripled, while the speed of the wave is held constant the the frequency will decreases to [tex]\dfrac{1}{3}[/tex]

So, the frequency will be decreases to  [tex]\dfrac{1}{3}[/tex]

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