Question

An illustration of a ringing bell and dots representing air molecules. The dots are close together, then far apart and close together again representing a longitudinal mechanical wave of sound going from the bell to an ear.
How many wavelengths are seen in this image of a sound wave?

three
four
six
ten

Answer 1

To determine how many wavelengths are seen in the image of a sound wave represented by the ringing bell and air molecules, you'd need to visually count the number of complete cycles (from compression to rarefaction and back to compression) in the illustration.

In a longitudinal wave, one complete wavelength consists of one compression and one rarefaction.

If you can describe the image further or provide details about the spacing of the dots (molecules) or the overall number of complete cycles, I could help you identify how many wavelengths are present. However, based on the options provided (three, four, six, ten), you would select the appropriate number based on your observation in the illustration.

If you're unsure or if there's any specific detail from the image you can describe, feel free to share, and I can assist you better!