What is the frequency of ultrasonic waves?
A. 20 Hertz to 20 kHertz
B. Less than 20 Hertz
C. More than 20 kHertz
D. No bandwidth defined
Answer: Option C
A. 20 Hertz to 20 kHertz
B. Less than 20 Hertz
C. More than 20 kHertz
D. No bandwidth defined
Answer: Option C
Which of the following substances will have the lowest speed of sound?
A. Water
B. Steel
C. Glasss
D. Air
What is the approximate range of sound for humans?
A. 20Hertz to 2000 Hertz
B. 20Hertz to 200Hertz
C. 20 Hertz to 20000 Hertz
D. 2 Hertz to 2000 Hertz
Loudness of sound depends upon which of the following?
A. Frequency
B. Wavelength
C. Amplitude
D. Overtones
A. On land
B. In air
C. In space
D. Underwater
Join The Discussion