Question

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select one
what is the wavelength of the wave above?
40 cm
10 cm
20 cm

Explanation:

Step1: Recall the definition of wavelength

Wavelength is the distance between two consecutive crests (or troughs) in a wave.

Step2: Identify crests on the graph

Looking at the graph, the first crest is at \(10\) cm and the next crest is at \(50\) cm.

Step3: Calculate the wavelength

Wavelength \(\lambda=50 - 10=40\) cm.

Answer:

\(40\) cm