Physics · Acoustics

Ultrasonic waves are sound waves that have a frequency of:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1Less than 20 Hz
2More than 20 kHz✓
3Between 20 Hz and 1,000 Hz
4Between 1,000 Hz and 20,000 Hz

Correct answer

More than 20 kHz

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