Sound with frequencies below and above the audible frequency range are known as ________.
A. Feeble sound
B. Infrasound
C. Parasound
D. Ultrasound
Choose the correct answer from the options given below:
1
A and C
2
B and C
3
B and D
4
A and D
Sound with frequencies below and above the audible frequency range are known as ________.
A. Feeble sound
B. Infrasound
C. Parasound
D. Ultrasound
Choose the correct answer from the options given below: