The ultrasonics have the frequencies: | ClassNotes

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The ultrasonics have the frequencies: | ClassNotes

E

Editor

Sep 18, 2022

The ultrasonics have the frequencies:

Difficulty: Easy

A:

In the audible range

B:

Above 20,000 Hz

C:

Below 20 Hz

D:

None

ID: 63273db8ca83163ac3a0f91b