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5 October, 22:51

Voices of swimmers at a pool travel 400 m/s through the air and 1,600 m/s underwater. The wavelength changes from 2 m

in the air to 8 m underwater.

How has the change in media affected the frequency of the wave?

O It increased.

O It decreased.

O It stayed the same.

O It cannot be calculated.

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Answers (1)
  1. 5 October, 23:17
    0
    The frequency of the wave has not changed.

    In fact, the frequency of a wave is given by:

    where v is the wave's speed and is the wavelength.

    Applying the formula:

    - In air, the frequency of the wave is:

    - underwater, the frequency of the wave is:

    So, the frequency has not changed.
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Home » Mathematics » Voices of swimmers at a pool travel 400 m/s through the air and 1,600 m/s underwater. The wavelength changes from 2 m in the air to 8 m underwater. How has the change in media affected the frequency of the wave? O It increased. O It decreased.
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