Sound of frequencies below 20 Hz are called . . . . . . . .
A. infrasonic sound
B. ultrasonic sound
C. intrasonic sound
D. reflected sound
Answer: Option A
This Question Belongs to Physics GK Chapter Wise >> Sounds Waves And Motion
Related Questions on Sounds waves and Motion
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
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