Everyday Science
NULL
Medium
Question
The frequency of an ultrasound wave is typically?
A
Above 20 kHz
✓ Official correct answer
B
Above 20,000 kHz
C
Below 20 kHz
D
Below 02 kHz
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
Above 20 kHz
No member explanations yet for this option.
B
Above 20,000 kHz
No member explanations yet for this option.
C
Below 20 kHz
No member explanations yet for this option.
D
Below 02 kHz
No member explanations yet for this option.
Explanation
Ultrasound is sound with frequency above 20 kHz.
Hence the keyed answer is Above 20 kHz.
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