Q253
Infrasonic sound has a frequency lower than
A.
5 Hz
B.
15 Hz
C.
20 Hz
AnswerD.
32 Hz
Answer: Option C
Solution
Answer: Option C
Solution:
Infrasonic Sound has a frequency less than the audible frequency range. Frequencies are less than 20 Hz. The infrasonic sounds have below the lower limit of human hearing.