As I started the lab I was comparing my answers to other and for the wavelength

Question

As I started the lab I was comparing my answers to other and for the wavelength many are documenting 14.4 cm but I am finding 43 cm to be the wavelenght. Need help with fining the wavelength for this simulation.

https://phet.colorado.edu/en/simulation/wave-on-a-string

Open Waves http://phet colorado.edu/en/simulation/wave-on-a-string 16 Rulers tension 56 VTimer High Show Help Amplitude Frequency Damping low Fixed End O Manual Loose End No End 00:01:72 Reset pause play Procedure: 1. Apply the following settings to the simulation: Set Wave to Oscillate, End type to No End, Amplitude to 60, Frequency to 40, Damping to 0, and Tension to High. Make sure to check the Rulers and Timer boxes. a. Run the simulation and observe how the wave behaves. b. Click the pause/play button to stop the simulation. c. Measure wavelength the Wavelength 43 cm d. Measure the amplitude. It is measured from the middle reference line to a crest (or a trough). You can drag the reference line to the position of a crest or a trough then measure between these reference lines. Amplitude (A)- 20 cm

Explanation / Answer

Wavelength = distance between two consecutive crests

Now, from the image, first crest is located at 8 cm

And second crest at 43 cm

So, wavelength = 43 - 8 = 35 cm ------ approx

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