Question

Ultrasonic sound has frequency range

a. Greater than 20,000Hz
b.Less than 20Hz
c.Greater than 20Hz
d. Less than 20,000Hz​

Answer 1

Greater than 20,000Hz

I think you get the answer

please make me brain list

don't report me please plz

Answer 2

Answer:

wnswer

Explanation:

Greater than 20,000 Hz please make me the brainliest