wiz-icon
MyQuestionIcon
MyQuestionIcon
2
You visited us 2 times! Enjoying our articles? Unlock Full Access!
Question

Earthquake produces which kind of sound before the main shock wave begins

A
ultrasound
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
infrasound
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
audible sound
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
none of the above
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B infrasound
Earthquake produces infra-sound before the main shock wave.
Infrasound is a low-frequency sound. It is sound that is lower in frequency than 20 Hz (hertz) or cycles per second, the normal limit of human hearing. Hearing becomes gradually less sensitive as frequency decreases, so for humans to perceive infrasound, the sound pressure must be sufficiently high. The ear is the primary organ for sensing infra-sound, but at higher intensities it is possible to feel infra-sound vibrations in various parts of the body.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Noise pollution
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon