Advertisements
Advertisements
प्रश्न
What is the name of the device which is used to find the depth of sea (or ocean) by using ultrasonic sound waves ?
Advertisements
उत्तर
Sonar is a device used to find the depth of a sea through ultrasonic sound waves.
APPEARS IN
संबंधित प्रश्न
Name the three characteristics of sound.
How does the pitch of a sound depend on frequency ?
Write the full name of 'SONAR'.
What name is given to sound waves of frequencies higher than 20 kHz ?
Fill in the blank with suitable word :
Loudness of sound depends on .....................
What is meant by the 'loudness' of sound ? On what factor does the loudness of a sound depend ?
Draw labelled diagrams to represent sound of (a) low pitch, and (b) high pitch, of the same loudness.
How is it that bats are able to fly at night without colliding with other objects ?
In SONAR we use:
The depth of an ocean can be determined by ______.
