Question

look at the two wave diagrams
which best describes the difference between wave a
and wave b?
wave a has a greater pitch and frequency.
wave b has a greater pitch and frequency.
wave a has a greater pitch but lower frequency.
wave b has a lower pitch but greater frequency.

Explanation:

Step1: Understand the relationship between frequency and pitch

In sound waves, pitch is directly related to frequency. Higher - frequency waves have a higher pitch.

Step2: Analyze the number of cycles (frequency) in the given time period

Wave A has more cycles (oscillations) within the same time period compared to Wave B. Since frequency is the number of cycles per unit time, \(f=\frac{n}{t}\) (where \(n\) is the number of cycles and \(t\) is time), Wave A has a higher frequency.

Step3: Relate frequency to pitch

Because of the direct relationship between frequency and pitch (higher frequency = higher pitch), Wave A, with its higher frequency, also has a greater pitch.

Answer:

Wave A has a greater pitch and frequency.