Advertisements
Advertisements
प्रश्न
What do you understand by the term infrasonic vibrations?
Advertisements
उत्तर
Infrasonic vibrations: Those vibrations whose frequency is less than 20 hertz are known as infrasonic vibrations
APPEARS IN
संबंधित प्रश्न
The sketches I to IV in following Figure show sound waves, all formed in the same time interval.
 |
 |
| I | II |
 |
 |
| III | IV |
Which diagram shows
- a note from a musical instrument
- a soft (or feeble) note,
- a bass (low frequency) note.
Which has the higher frequency - ultrasonic sound or infrasonic sound?
Complete the following sentences:
An average person can hear sound of frequencies in the range ______ to _________.
Name the sound of the frequency given below:
40 kHz
Explain how do bats locate the obstacles and prey in their way.
What does SONAR stand for?
Is the energy carried by the ultrasound very high or very low?
What is echocardiography?
What does SONAR stand for? Where do we make use of SONAR?
State the main components of a hearing aid.
