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
A wave is moving in air with a velocity of 340 m/s. Calculate the wavelength if its frequency is 512 vibrations/sec.
Define the 'frequency' and 'time-period' of a wave. What is the relation between the two?
What happens to the pitch of a sound if its frequency increases ?
Draw labelled diagrams to represent (a) soft sound, and (b) loud sound, of the same frequency.
What is the range of frequencies associated with (a) infrasound (b) audible sound, and (c) ultrasound ?
What is sonar ? Explain its use.
A sonar station picks up a return signal after 3 seconds. How far away is the object ? (Speed of sound in water = 1440 m/s).
The ultrasound waves can penetrate into matter to a large extent because they have :
What type of waves are generated by SONAR device fixed to a fishing ship ?
Expand the abbreviation of the term SONAR.
