Question

question 4 of 10
the graph shows the amplitude of a passing wave over time in seconds (s). what is the approximate frequency of the wave shown?
a. 0.5 hz
b. 20 hz
c. 9 hz
d. 0.1 hz

Explanation:

Step1: Identify the period

From the graph, one - complete wave cycle occurs from \(t = 0\) s to \(t = 10\) s. So the period \(T=10\) s.

Step2: Use the frequency - period formula

The formula for frequency \(f\) in terms of period \(T\) is \(f=\frac{1}{T}\).
Substitute \(T = 10\) s into the formula: \(f=\frac{1}{10}=0.1\) Hz.

Answer:

D. 0.1 Hz